/**
 * Global variables
 */
// Node tabs
var nodesTab;
// Original node attributes
var origAttrs = new Object();
// Node attributes
var nodeAttrs;
// Node list
var nodesList;
// Nodes datatable ID
var nodesTableId = 'nodesDatatable';

/**
 * Set node tab
 * 
 * @param tab
 *            Tab object
 * @return Nothing
 */
function setNodesTab(tab) {
	nodesTab = tab;
}

/**
 * Get node tab
 * 
 * @return Tab object
 */
function getNodesTab() {
	return nodesTab;
}

/**
 * Get node list
 * 
 * @return Node list
 */
function getNodesList() {
	return nodesList;
}

/**
 * Get nodes table ID
 * 
 * @return Nodes table ID
 */
function getNodesTableId() {
	return nodesTableId;
}

/**
 * Load nodes page
 * 
 * @return Nothing
 */
function loadNodesPage() {
	// If groups are not already loaded
	if (!$('#groups').length) {
		// Create a groups division
		var groups = $('<div id="groups"></div>');
		var nodes = $('<div id="nodes"></div>');
		$('#content').append(groups);
		$('#content').append(nodes);

		// Create loader
		var loader = createLoader();
		groups.append(loader);
		
		// Create info bar
		var info = createInfoBar('Select a group to view its nodes.');
		$('#nodes').append(info);

		// Get groups
		$.ajax( {
			url : 'lib/cmd.php',
			dataType : 'json',
			data : {
				cmd : 'extnoderange',
				tgt : '/.*',
				args : 'subgroups',
				msg : ''
			},

			success : loadGroups
		});
		
	}
}

/**
 * Load groups
 * 
 * @param data
 *            Data returned from HTTP request
 * @return
 */
function loadGroups(data) {
	// Remove loader
	$('#groups').find('img').remove();
	
	// Save group in cookie
	var groups = data.rsp;
	setGroupsCookies(data);

	// Create a list of groups
	var list = $('<ul></ul>');
	var item = $('<li id="root"><h3>Groups</h3></li>');
	var subList = $('<ul></ul>');
	list.append(item);
	item.append(subList);

	// Create a link for each group
	for (var i = groups.length; i--;) {
		var subItem = $('<li id="' + groups[i] + '"></li>');
		var link = $('<a>' + groups[i] + '</a>');
		subItem.append(link);
		subList.append(subItem);
	}

	// Turn groups list into a tree
	$('#groups').append(list);
	$('#groups').jstree( {
		core : { "initially_open" : [ "root" ] },
		themes : {
			"theme" : "default",
			"dots" : false,	// No dots
			"icons" : false	// No icons
		},
		cookies : { "auto_save" : false}
	});
	
	// Load nodes onclick
	$('#groups').bind('select_node.jstree', function(event, data) {
		// If there are subgroups, remove them
		data.rslt.obj.children('ul').remove();
		
		var thisGroup = jQuery.trim(data.rslt.obj.text());
		if (thisGroup) {
			// Clear nodes division
			$('#nodes').children().remove();
			
			// Create loader
			var loader = $('<center></center>').append(createLoader());
			
			// Create a tab for this group
			var tab = new Tab('nodesPageTabs');
			setNodesTab(tab);
			tab.init();
			$('#nodes').append(tab.object());
			tab.add('nodesTab', 'Table View', loader, false);
			tab.add('graphTab', 'Graphic View', '', false);
			
			$('#nodesPageTabs').bind('tabsselect', function(event, ui){
				//for the graphical tab, we should check the graphical data first
				if (1 == ui.index){
					createPhysicalLayout(nodesList);
				}
			});
			// To improve performance, get all nodes within selected group
			// Get node definitions only for first 50 nodes
			$.ajax( {
				url : 'lib/cmd.php',
				dataType : 'json',
				data : {
					cmd : 'nodels',
					tgt : thisGroup,
					args : '',
					msg : thisGroup
				},

				/**
				 * Get node definitions for first 50 nodes
				 * 
				 * @param data
				 *            Data returned from HTTP request
				 * @return Nothing
				 */
				success : function(data) {
					var rsp = data.rsp;
					var group = data.msg;
					
					// Save nodes in a list so it can be accessed later
					nodesList = new Array();
					for (var i in rsp) {
						if (rsp[i][0]) {
							nodesList.push(rsp[i][0]);
						}
					}
					
					// Sort nodes list
					nodesList.sort();
					
					// Get first 50 nodes
					var nodes = '';
					for (var i = 0; i < nodesList.length; i++) {
						if (i > 49) {
							break;
						}
						
						nodes += nodesList[i] + ',';						
					}
								
					// Remove last comma
					nodes = nodes.substring(0, nodes.length-1);
					
					// Get nodes definitions
					$.ajax( {
						url : 'lib/cmd.php',
						dataType : 'json',
						data : {
							cmd : 'lsdef',
							tgt : '',
							args : nodes,
							msg : group
						},

						success : loadNodes
					});
					
				}
			});
				
			/*
			// Get subgroups within selected group
			// only when this is the parent group and not a subgroup
			if (data.rslt.obj.attr('id').indexOf('Subgroup') < 0) {
    			$.ajax( {
    				url : 'lib/cmd.php',
    				dataType : 'json',
    				data : {
    					cmd : 'extnoderange',
    					tgt : thisGroup,
    					args : 'subgroups',
    					msg : thisGroup
    				},
    
    				success : loadSubgroups
    			});
			}
			*/
			
		} // End of if (thisGroup)
	});
	
	// Make a link to add nodes
	//$('#groups').append(mkAddNodeLink());
}

/**
 * Make a link to add nodes
 * 
 * @returns Link to add nodes
 */
function mkAddNodeLink() {
	// Create link to add nodes
	var addNodeLink = $('<a title="Add a node or a node range to xCAT">Add node</a>');
	addNodeLink.click(function() {
		// Create info bar
		var info = createInfoBar('Select the hardware management for the new node range');
		
		// Create form to add node
		var addNodeForm = $('<div class="form"></div>');
		addNodeForm.append(info);
		addNodeForm.append('<div><label for="mgt">Hardware management:</label>'
    		+ '<select id="mgt" name="mgt">'
    			+ '<option>ipmi</option>' 
    			+ '<option>blade</option>'
    			+ '<option>hmc</option>'
    			+ '<option>zvm</option>'
    		+ '</select>'
    	+ '</div>');
		
		// Create advanced link to set advanced node properties
		var advanced = $('<div></div>');
		var advancedLnk = $('<a>Advanced</a>').css({
			'cursor': 'pointer',
			'color': '#0000FF'
		});
		advancedLnk.click(function() {
			// Get node attributes
			$.ajax( {
				url : 'lib/cmd.php',
				dataType : 'json',
				data : {
					cmd : 'lsdef',
					tgt : '',
					args : '-t;node;-h',
					msg : ''
				},

				/**
				 * Set node attributes and open dialog
				 * 
				 * @param data
				 *            Data returned from HTTP request
				 * @return Nothing
				 */
				success : function(data) {
					// Save node attributes
					setNodeAttrs(data);
					// Open a dialog to set node attributes
					openSetAttrsDialog();
				}
			});
			
			// Close dialog
			addNodeForm.dialog('close');
		});
		advanced.append(advancedLnk);
		addNodeForm.append(advanced);
					
		// Open dialog to add node
		addNodeForm.dialog({
			modal: true,
			width: 400,
			buttons: {
        		'Ok': function(){
					// Get hardware management
					var mgt = $(this).find('select[name=mgt]').val();					
					
					var plugin;
					switch(mgt) {
			    		case "blade":
			        		plugin = new bladePlugin();
			        		break;
			    		case "hmc":
			    			plugin = new hmcPlugin();
			    			break;
			    		case "ipmi":
			    			plugin = new ipmiPlugin();
			    			break;
			    		case "zvm":
			    			plugin = new zvmPlugin();
			    			break;
			    	}
					
					plugin.addNode();
					$(this).dialog('close');
				},
				'Cancel': function(){
        			$(this).dialog('close');
        		}
			}
		});

	});
	
	// Generate tooltips
	addNodeLink.tooltip({
		position: 'center right',
		offset: [-2, 10],
		effect: 'fade',
		opacity: 0.7,
		predelay: 800
	});
	
	return addNodeLink;
}

/**
 * Load subgroups
 * 
 * @param data
 *            Data returned from HTTP request
 * @return Nothing
 */
function loadSubgroups(data) {
	var rsp = data.rsp;		// Data returned
	var group = data.msg;	// Group name
	
	// Go through each subgroup
	for (var i in rsp) {
		// Do not put the same group in the subgroup
		if (rsp[i] != group && $('#' + group).length) {
			// Add subgroup inside group
			$('#groups').jstree('create', $('#' + group), 'inside', {
				'attr': {'id': rsp[i] + 'Subgroup'},
				'data': rsp[i]}, 
			'', true);
		}
	}
}

/**
 * Load nodes belonging to a given group
 * 
 * @param data
 *            Data returned from HTTP request
 * @return Nothing
 */
function loadNodes(data) {
	// Data returned	
	var rsp = data.rsp;
	// Group name
	var group = data.msg;
	// Hash of Node attributes
	var attrs = new Object();
	// Node attributes
	var headers = new Object();
	
	// Variable to send command and request node status
	var getNodeStatus = true;
	
	// Clear cookie containing list of nodes where their attributes need to be updated
	$.cookie('nodes2update', '');
	// Clear hash table containing node attributes
	origAttrs = '';
	
	var node, args;
	for (var i in rsp) {
		// Get node name
		if (rsp[i].indexOf('Object name:') > -1) {
			var temp = rsp[i].split(': ');
			node = jQuery.trim(temp[1]);

			// Create a hash for the node attributes
			attrs[node] = new Object();
			i++;
		}

		// Get key and value
		args = rsp[i].split('=', 2);
		var key = jQuery.trim(args[0]);
		var val = jQuery.trim(rsp[i].substring(rsp[i].indexOf('=') + 1, rsp[i].length));
		
		// Create a hash table
		attrs[node][key] = val;
		headers[key] = 1;
		
		// If node status is available
		if (key == 'status') {
			// Do not request node status
			getNodeStatus = false;
		}
	}
	
	// Add nodes that are not in data returned
	for (var i in nodesList) {
		if (!attrs[nodesList[i]]) {
			// Create attributes list and save node name
			attrs[nodesList[i]] = new Object();
			attrs[nodesList[i]]['node'] = nodesList[i];
		}
	}
	
	// Save attributes in hash table
	origAttrs = attrs;

	// Sort headers
	var sorted = new Array();
	for (var key in headers) {
		// Do not put comments and status in twice
		if (key != 'usercomment' && key != 'status' && key.indexOf('statustime') < 0) {
			sorted.push(key);
		}
	}
	sorted.sort();

	// Add column for check box, node, ping, power, monitor, and comments
	sorted.unshift('<input type="checkbox" onclick="selectAllCheckbox(event, $(this))">', 
		'node', 
		'<span><a>status</a></span><img src="images/loader.gif"></img>', 
		'<span><a>power</a></span><img src="images/loader.gif" style="display: none;"></img>',
		'<span><a>monitor</a></span><img src="images/loader.gif" style="display: none;"></img>',
		'comments');

	// Create a datatable
	var nodesTable = new DataTable(nodesTableId);
	nodesTable.init(sorted);
	
	// Go through each node
	for (var node in attrs) {
		// Create a row
		var row = new Array();
		
		// Create a check box, node link, and get node status
		var checkBx = '<input type="checkbox" name="' + node + '"/>';
		var nodeLink = $('<a class="node" id="' + node + '">' + node + '</a>').bind('click', loadNode);
		
		// If there is no status attribute for the node, do not try to access hash table
		// Else the code will break
		var status = '';
		if (attrs[node]['status']) {
			status = attrs[node]['status'].replace('sshd', 'ping');
		}
			
		// Push in checkbox, node, status, monitor, and power
		row.push(checkBx, nodeLink, status, '', '');
		
		// If the node attributes are known (i.e the group is known)
		if (attrs[node]['groups']) {
			// Put in comments
			var comments = attrs[node]['usercomment'];			
			// If no comments exists, show 'No comments' and set icon image source
			var iconSrc;
			if (!comments) {
				comments = 'No comments';
				iconSrc = 'images/nodes/ui-icon-no-comment.png';
			} else {
				iconSrc = 'images/nodes/ui-icon-comment.png';
			}
					
			// Create comments icon
			var tipID = node + 'Tip';
			var icon = $('<img id="' + tipID + '" src="' + iconSrc + '"></img>').css({
				'width': '18px',
				'height': '18px'
			});
			
			// Create tooltip
			var tip = createCommentsToolTip(comments);
			var col = $('<span></span>').append(icon);
			col.append(tip);
			row.push(col);
		
			// Generate tooltips
			icon.tooltip({
				position: "center right",
				offset: [-2, 10],
				effect: "fade",	
				opacity: 0.8,
				relative: true,
				delay: 500
			});
		} else {
			// Do not put in comments if attributes are not known
			row.push('');
		}
		
		// Go through each header
		for (var i = 6; i < sorted.length; i++) {
			// Add the node attributes to the row
			var key = sorted[i];
			
			// Do not put comments and status in twice
			if (key != 'usercomment' && key != 'status' && key.indexOf('statustime') < 0) {
    			var val = attrs[node][key];
    			if (val) {
    				row.push(val);
    			} else {
    				row.push('');
    			}
			}
		}

		// Add the row to the table
		nodesTable.add(row);
	}

	// Clear the tab before inserting the table
	$('#nodesTab').children().remove();
	
	// Create info bar for nodes tab
	var info = createInfoBar('Click on a cell to edit.  Click outside the table to write to the cell.  Hit the Escape key to ignore changes. Once you are satisfied with how the table looks, click on Save.');
	$('#nodesTab').append(info);

	// Create action bar
	var actionBar = $('<div class="actionBar"></div>');

	/**
	 * Create menu for actions to perform against a given node:
	 * power, clone, delete, unlock, and advanced
	 */

	var powerLnk = $('<a>Power</a>');
	
	// Power on
	var powerOnLnk = $('<a>Power on</a>');
	powerOnLnk.click(function() {
		var tgtNodes = getNodesChecked(nodesTableId);
		if (tgtNodes) {
			powerNode(tgtNodes, 'on');
		}
	});
	
	// Power off
	var powerOffLnk = $('<a>Power off</a>');
	powerOffLnk.click(function() {
		var tgtNodes = getNodesChecked(nodesTableId);
		if (tgtNodes) {
			powerNode(tgtNodes, 'off');
		}
	});
	
	var monitorLnk = $('<a>Monitor</a>');

	// Turn monitoring on
	var monitorOnLnk = $('<a>Monitor on</a>');
	monitorOnLnk.click(function() {
		var tgtNodes = getNodesChecked(nodesTableId);
		if (tgtNodes) {
			monitorNode(tgtNodes, 'on');
		}
	});

	// Turn monitoring off
	var monitorOffLnk = $('<a>Monitor off</a>');
	monitorOffLnk.click(function() {
		var tgtNodes = getNodesChecked(nodesTableId);
		if (tgtNodes) {
			monitorNode(tgtNodes, 'off');
		}
	});

	// Clone
	var cloneLnk = $('<a>Clone</a>');
	cloneLnk.click(function() {
		var tgtNodes = getNodesChecked(nodesTableId).split(',');
		for (var i in tgtNodes) {
			var mgt = getNodeAttr(tgtNodes[i], 'mgt');

			// Create an instance of the plugin
			var plugin;
			switch(mgt) {
				case "blade":
		    		plugin = new bladePlugin();
		    		break;
				case "fsp":
					plugin = new fspPlugin();
					break;
				case "hmc":
					plugin = new hmcPlugin();
					break;
				case "ipmi":
					plugin = new ipmiPlugin();
					break;		
				case "ivm":
					plugin = new ivmPlugin();
					break;
				case "zvm":
					plugin = new zvmPlugin();
					break;
			}
			
			plugin.loadClonePage(tgtNodes[i]);
		}
	});

	// Delete
	var deleteLnk = $('<a>Delete</a>');
	deleteLnk.click(function() {
		var tgtNodes = getNodesChecked(nodesTableId);
		if (tgtNodes) {
			loadDeletePage(tgtNodes);
		}
	});

	// Unlock
	var unlockLnk = $('<a>Unlock</a>');
	unlockLnk.click(function() {
		var tgtNodes = getNodesChecked(nodesTableId);
		if (tgtNodes) {
			loadUnlockPage(tgtNodes);
		}
	});

	// Run script
	var scriptLnk = $('<a>Run script</a>');
	scriptLnk.click(function() {
		var tgtNodes = getNodesChecked(nodesTableId);
		if (tgtNodes) {
			loadScriptPage(tgtNodes);
		}
	});

	// Update
	var updateLnk = $('<a>Update</a>');
	updateLnk.click(function() {
		var tgtNodes = getNodesChecked(nodesTableId);
		if (tgtNodes) {
			loadUpdatenodePage(tgtNodes);
		}
	});

	// Set boot state
	var setBootStateLnk = $('<a>Set boot state</a>');
	setBootStateLnk.click(function() {
		var tgtNodes = getNodesChecked(nodesTableId);
		if (tgtNodes) {
			loadNodesetPage(tgtNodes);
		}

	});

	// Boot to network
	var boot2NetworkLnk = $('<a>Boot to network</a>');
	boot2NetworkLnk.click(function() {
		var tgtNodes = getNodesChecked(nodesTableId);
		if (tgtNodes) {
			loadNetbootPage(tgtNodes);
		}
	});

	// Remote console
	var rcons = $('<a>Open console</a>');
	rcons.bind('click', function(event){
		var tgtNodes = getNodesChecked(nodesTableId);
		if (tgtNodes) {
			loadRconsPage(tgtNodes);
		}
	});
	
	// Edit properties
	var editProps = $('<a>Edit properties</a>');
	editProps.bind('click', function(event){
		var tgtNodes = getNodesChecked(nodesTableId).split(',');
		for (var i in tgtNodes) {
			loadEditPropsPage(tgtNodes[i]);
		}
	});
	
	// Install Ganglia
	var installMonLnk = $('<a>Install monitoring</a>');
	installMonLnk.click(function() {
		var tgtNodes = getNodesChecked(nodesTableId);
		if (tgtNodes) {
			installGanglia(tgtNodes);
		}
	});
	
	// Power actions
	var powerActions = [ powerOnLnk, powerOffLnk ];
	var powerActionMenu = createMenu(powerActions);
	
	// Monitor actions
	var monitorActions = [ monitorOnLnk, monitorOffLnk ];
	var monitorActionMenu = createMenu(monitorActions);

	// Advanced actions
	var advancedLnk = $('<a>Advanced</a>');
	var advancedActions;
	if ('compute' == group) {
		advancedActions = [ boot2NetworkLnk, scriptLnk, setBootStateLnk, updateLnk, rcons, editProps, installMonLnk ];
	} else {
		advancedActions = [ boot2NetworkLnk, scriptLnk, setBootStateLnk, updateLnk, editProps, installMonLnk ];
	}
	var advancedActionMenu = createMenu(advancedActions);

	// Create an action menu
	var actionsDiv = $('<div></div>');
	var actions = [ [ powerLnk, powerActionMenu ], [ monitorLnk, monitorActionMenu ], cloneLnk, deleteLnk, unlockLnk, [ advancedLnk, advancedActionMenu ] ];
	var actionsMenu = createMenu(actions);
	actionsMenu.superfish();
	actionsMenu.css('display', 'inline-block');
	actionsDiv.append(actionsMenu);
	actionBar.append(actionsDiv);
	
	// Insert action bar and nodes datatable
	$('#nodesTab').append(actionBar);
	$('#nodesTab').append(nodesTable.object());
	
	/**
	 * Create menu to save and undo table changes
	 */
	
	// Save changes
	var saveLnk = $('<a>Save</a>');
	saveLnk.bind('click', function(event){
		updateNodeAttrs(group);
	});
	
	// Undo changes
	var undoLnk = $('<a>Undo</a>');
	undoLnk.bind('click', function(event){
		restoreNodeAttrs();
		
		// Hide table menu actions
		tableActionsMenu.hide();
	});
	
	// It will be hidden until a change is made
	var tableActionsMenu = createMenu([saveLnk, undoLnk]);
	tableActionsMenu.css('display', 'inline-block');
	tableActionsMenu.attr('id', 'tableActionMenu');
	actionsDiv.append(tableActionsMenu.hide());

	// Turn table into a datatable
	var nodesDatatable = $('#' + nodesTableId).dataTable({
		'iDisplayLength': 50
	});
	
	// Filter table when enter key is pressed
	$('#' + nodesTableId + '_filter input').unbind();
	$('#' + nodesTableId + '_filter input').bind('keyup', function(e){
		if (e.keyCode == 13) {
			var table = $('#' + nodesTableId).dataTable();
			table.fnFilter($(this).val());
			
			// If there are nodes found, get the node attributes
			if (!$('#' + nodesTableId + ' .dataTables_empty').length) {
				getNodeAttrs(group);
			}
		}
	});
	
	// Load node definitions when next or previous buttons are clicked
	$('#' + nodesTableId + '_next, #' + nodesTableId + '_previous').click(function() {
		getNodeAttrs(group);
	});
	
	/**
	 * Change how datatable behaves
	 */
	
	// Do not sort ping, power, and comment column
	var cols = $('#' + nodesTableId + ' thead tr th').click(function() {		
		getNodeAttrs(group);
	});
	var pingCol = $('#' + nodesTableId + ' thead tr th').eq(2);
	var powerCol = $('#' + nodesTableId + ' thead tr th').eq(3);
	var monitorCol = $('#' + nodesTableId + ' thead tr th').eq(4);
	var commentCol = $('#' + nodesTableId + ' thead tr th').eq(5);
	pingCol.unbind('click');
	powerCol.unbind('click');
	monitorCol.unbind('click');
	commentCol.unbind('click');
	
	// Create enough space for loader to be displayed
	// Center align power, ping, and comments
	$('#' + nodesTableId + ' td:nth-child(3),td:nth-child(4),td:nth-child(5)').css({
		'min-width': '65px',
		'text-align': 'center'
	});
	
	// No minimum width for comments column
	$('#' + nodesTableId + ' tbody tr td:nth-child(6)').css('text-align', 'center');
	
	// Instead refresh the node, power, and monitor status
	pingCol.find('span a').click(function() {
		refreshNodeStatus(group, nodesTableId);
	});
	powerCol.find('span a').click(function() {
		refreshPowerStatus(group, nodesTableId);
	});
	monitorCol.find('span a').click(function() {
		refreshGangliaStatus(group, nodesTableId);
	});
	
	// Create tooltip for status 
	var tooltipConf = {
			position: "center right",
			offset: [-2, 10],
			effect: "fade",	
			opacity: 0.8,
			relative: true,
			predelay: 800
		};

	var pingTip = createStatusToolTip();
	pingCol.find('span').append(pingTip);
	pingCol.find('span a').tooltip(tooltipConf);
	
	// Create tooltip for power
	var powerTip = createPowerToolTip();
	powerCol.find('span').append(powerTip);
	powerCol.find('span a').tooltip(tooltipConf);
	
	// Create tooltip for monitor 
	var monitorTip = createMonitorToolTip();
	monitorCol.find('span').append(monitorTip);
	monitorCol.find('span a').tooltip(tooltipConf);
	
	/**
	 * Enable editable columns
	 */
	
	// Do not make 1st, 2nd, 3rd, 4th, 5th, or 6th column editable
	$('#' + nodesTableId + ' td:not(td:nth-child(1),td:nth-child(2),td:nth-child(3),td:nth-child(4),td:nth-child(5),td:nth-child(6))').editable(
		function(value, settings) {			
			// Change text color to red
			$(this).css('color', 'red');
			
			// Get column index
			var colPos = this.cellIndex;
						
			// Get row index
			var dTable = $('#' + nodesTableId).dataTable();
			var rowPos = dTable.fnGetPosition(this.parentNode);
			
			// Update datatable
			dTable.fnUpdate(value, rowPos, colPos, false);
			
			// Get node name
			var node = $(this).parent().find('td a.node').text();
			
			// Flag node to update
			flagNode2Update(node);
			
			// Show table menu actions
			tableActionsMenu.show();

			return (value);
		}, {
			onblur : 'submit', 	// Clicking outside editable area submits changes
			type : 'textarea',
			placeholder: ' ',
			height : '30px' 	// The height of the text area
		});
	
	/**
	 * Get the node status and definable node attributes
	 */

	// If request to get node status is made
	if (getNodeStatus) {
		var tgt = getNodesShown(nodesTableId);
		
    	// Get node status
    	$.ajax( {
    		url : 'lib/cmd.php',
    		dataType : 'json',
    		data : {
    			cmd : 'nodestat',
    			tgt : tgt,
    			args : '-u',
    			msg : ''
    		},
    
    		success : loadNodeStatus
    	});
	} else {
		// Hide status loader
		var statCol = $('#' + nodesTableId + ' thead tr th').eq(2);
		statCol.find('img').hide();
	}
	
	// Get definable node attributes
	$.ajax( {
		url : 'lib/cmd.php',
		dataType : 'json',
		data : {
			cmd : 'lsdef',
			tgt : '',
			args : '-t;node;-h',
			msg : ''
		},

		success : setNodeAttrs
	});
	
	/**
	 * Additional ajax requests need to be made for zVM
	 */
	
	// Get index of hcp column
	var i = $.inArray('hcp', sorted);
	var archCol = $.inArray('arch', sorted);
	if (i) {
		// Get hardware control point
		var rows = nodesTable.object().find('tbody tr');
		var hcps = new Object();
		var rowsNum = rows.size();
		for (var j = 0; j < rowsNum; j++) {
			var val = rows.eq(j).find('td').eq(i).html();
			var archval = rows.eq(j).find('td').eq(archCol).html();
			if (-1 == archval.indexOf('390')){
				continue;
			}
			hcps[val] = 1;
		}

		var args;
		for (var h in hcps) {
			// Get node without domain name
			args = h.split('.');
			
			// If there are no disk pools or network names cookie for this hcp
			if (!$.cookie(args[0] + 'diskpools') || !$.cookie(args[0] + 'networks')) {
    			// Check if SMAPI is online
    			$.ajax( {
    				url : 'lib/cmd.php',
    				dataType : 'json',
    				data : {
    					cmd : 'lsvm',
    					tgt : args[0],
    					args : '',
    					msg : 'group=' + group + ';hcp=' + args[0]
    				},
    
    				// Load hardware control point specific info
    				// Get disk pools and network names
    				success : loadHcpInfo
    			});		
			}
		} // End of for
	} // End of if
}

/**
 * Get nodes currently shown in datatable
 * 
 * @param tableId
 *            Datatable ID
 * @return String of nodes shown
 */
function getNodesShown(tableId) {
	// String of nodes shown
	var shownNodes = '';
	
	// Get rows of shown nodes
	var nodes = $('#' + tableId + ' tbody tr');
				
	// Go through each row
	var cols;
	for (var i = 0; i < nodes.length; i++) {
		// Get second column containing node name
		cols = nodes.eq(i).find('td');
		shownNodes += cols.eq(1).text() + ',';
	}
	
	// Remove last comma
	shownNodes = shownNodes.substring(0, shownNodes.length-1);
	return shownNodes;
}

/**
 * Get attributes for nodes not yet initialized
 * 
 * @param group
 *            Group name
 * @return Nothing
 */
function getNodeAttrs(group) {	
	// Get datatable headers and rows
	var headers = $('#' + nodesTableId + ' thead tr th');
	var nodes = $('#' + nodesTableId + ' tbody tr');
	
	// Find group column
	var head, groupsCol;
	for (var i = 0; i < headers.length; i++) {
		head = headers.eq(i).html();
		if (head == 'groups') {
			groupsCol = i;
			break;
		}
	}

	// Check if groups definition is set
	var node, cols;
	var tgtNodes = '';
	for (var i = 0; i < nodes.length; i++) {
		cols = nodes.eq(i).find('td');
		if (!cols.eq(groupsCol).html()) {
			node = cols.eq(1).text();
			tgtNodes += node + ',';
		}
	}
		
	// If there are node definitions to load
	if (tgtNodes) {
		// Remove last comma
		tgtNodes = tgtNodes.substring(0, tgtNodes.length-1);
				
		// Get node definitions
		$.ajax( {
			url : 'lib/cmd.php',
			dataType : 'json',
			data : {
				cmd : 'lsdef',
				tgt : '',
				args : tgtNodes,
				msg : group
			},
	
			success : addNodes2Table
		});
		
		// Create dialog to indicate table is updating
		var update = $('<div id="updatingDialog" class="ui-state-highlight ui-corner-all">' 
				+ '<p><span class="ui-icon ui-icon-info"></span> Updating table <img src="images/loader.gif"/></p>'
			+'</div>');
		update.dialog({
			modal: true,
			width: 300,
			position: 'center'
		});
	}
}

/**
 * Add nodes to datatable
 * 
 * @param data
 *            Data returned from HTTP request
 * @return Nothing
 */
function addNodes2Table(data) {
	// Data returned
	var rsp = data.rsp;
	// Group name
	var group = data.msg;
	// Hash of node attributes
	var attrs = new Object();
	// Node attributes
	var headers = $('#' + nodesTableId + ' thead tr th');
	
	// Variable to send command and request node status
	var getNodeStatus = true;
	
	// Clear cookie containing list of nodes where their attributes need to be updated
	$.cookie('nodes2update', '');

	// Go through each attribute
	var node, args;
	for (var i in rsp) {
		// Get node name
		if (rsp[i].indexOf('Object name:') > -1) {
			var temp = rsp[i].split(': ');
			node = jQuery.trim(temp[1]);

			// Create a hash for node attributes
			attrs[node] = new Object();
			i++;
		}

		// Get key and value
		args = rsp[i].split('=', 2);
		var key = jQuery.trim(args[0]);
		var val = jQuery.trim(rsp[i].substring(rsp[i].indexOf('=') + 1, rsp[i].length));
		
		// Create a hash table
		attrs[node][key] = val;
		// Save attributes in original hash table
		origAttrs[node][key] = val;
				
		// If node status is available
		if (key == 'status') {
			// Do not request node status
			getNodeStatus = false;
		}
	}
		
	// Set the first four headers
	var headersCol = new Object();
	headersCol['node'] = 1;
	headersCol['status'] = 2;
	headersCol['power'] = 3;
	headersCol['comments'] = 4;
	
	// Go through each header
	for (var i = 5; i < headers.length; i++) {
		// Get the column index
		headersCol[headers.eq(i).html()] = i;
	}

	// Go through each node
	var datatable = $('#' + nodesTableId).dataTable();
	var rows = datatable.fnGetData();
	for (var node in attrs) {
		// Get row containing node
		var nodeRowPos;
		for (var i in rows) {
			// If column contains node
			if (rows[i][1].indexOf('>' + node + '<') > -1) {
				nodeRowPos = i;
				break;
			}
		}
				
		// Get node status
		var status = '';
		if (attrs[node]['status']){
			status = attrs[node]['status'].replace('sshd', 'ping');
		}
		
		rows[nodeRowPos][headersCol['status']] = status;
				
		// Go through each header
		for (var key in headersCol) {
			// Do not put comments and status in twice
			if (key != 'usercomment' && key != 'status' && key.indexOf('statustime') < 0) {
    			var val = attrs[node][key];
    			if (val) {
    				rows[nodeRowPos][headersCol[key]] = val;
    			}
			}
		}
		
		// Update row
		datatable.fnUpdate(rows[nodeRowPos], nodeRowPos, 0, false);
		
		// Insert node comments
		// This is done after datatable is updated because 
		// you cannot insert an object using fnUpdate()
		var comments = attrs[node]['usercomment'];
				
		// If no comments exists, show 'No comments' and 
		// set icon image source
		var iconSrc;
		if (!comments) {
			comments = 'No comments';
			iconSrc = 'images/nodes/ui-icon-no-comment.png';
		} else {
			iconSrc = 'images/nodes/ui-icon-comment.png';
		}
				
		// Create icon for node comments
		var tipID = node + 'Tip';
		var commentsCol = $('#' + node).parent().parent().find('td').eq(4);
		
		// Create tooltip
		var icon = $('<img id="' + tipID + '" src="' + iconSrc + '"></img>').css({
			'width': '18px',
			'height': '18px'
		});
		
		var tip = createCommentsToolTip(comments);
		var span = $('<span></span>').append(icon);
		span.append(tip);
		commentsCol.append(span);
				
		// Generate tooltips
		icon.tooltip({
			position: "center right",
			offset: [-2, 10],
			effect: "fade",	
			opacity: 0.8,
			relative: true,
			delay: 500
		});
	}
	
	// Enable node link
	$('.node').bind('click', loadNode);

	// Close dialog for updating table
	$('.ui-dialog-content').dialog('close');
	
	/**
	 * Enable editable columns
	 */
	
	// Do not make 1st, 2nd, 3rd, 4th, or 5th column editable
	$('#' + nodesTableId + ' td:not(td:nth-child(1),td:nth-child(2),td:nth-child(3),td:nth-child(4),td:nth-child(5))').editable(
		function(value, settings) {			
			// Change text color to red
			$(this).css('color', 'red');
			
			// Get column index
			var colPos = this.cellIndex;
						
			// Get row index
			var dTable = $('#' + nodesTableId).dataTable();
			var rowPos = dTable.fnGetPosition(this.parentNode);
			
			// Update datatable
			dTable.fnUpdate(value, rowPos, colPos, false);
			
			// Get node name
			var node = $(this).parent().find('td a.node').text();
			
			// Flag node to update
			flagNode2Update(node);
			
			// Show table menu actions
			$('#tableActionMenu').show();

			return (value);
		}, {
			onblur : 'submit', 	// Clicking outside editable area submits changes
			type : 'textarea',
			placeholder: ' ',
			height : '30px' 	// The height of the text area
		});
	
	// If request to get node status is made
	if (getNodeStatus) {
    	// Get node status
    	$.ajax( {
    		url : 'lib/cmd.php',
    		dataType : 'json',
    		data : {
    			cmd : 'nodestat',
    			tgt : group,
    			args : '-u',
    			msg : ''
    		},
    
    		success : loadNodeStatus
    	});
	} else {
		// Hide status loader
		var statCol = $('#' + nodesTableId + ' thead tr th').eq(2);
		statCol.find('img').hide();
	}
	
	/**
	 * Additional ajax requests need to be made for zVM
	 */
	// If there is an hcp column
	if (headersCol['hcp']) {
		// Get hardware control point
		var rows = $('#' + nodesTableId + ' tbody tr');
		var hcps = new Object();
		for (var j in rows) {
			var val = rows.eq(j).find('td').eq(headersCol['hcp']).html();
			hcps[val] = 1;
		}

		var args;
		for (var h in hcps) {
			// Get node without domain name
			args = h.split('.');
						
			// If there are no disk pools or network names cookie for this hcp
			if (!$.cookie(args[0] + 'diskpools') || !$.cookie(args[0] + 'networks')) {
    			// Check if SMAPI is online
    			$.ajax( {
    				url : 'lib/cmd.php',
    				dataType : 'json',
    				data : {
    					cmd : 'lsvm',
    					tgt : args[0],
    					args : '',
    					msg : 'group=' + group + ';hcp=' + args[0]
    				},
    
    				// Load hardware control point specific info
    				// Get disk pools and network names
    				success : loadHcpInfo
    			});		
			}
		} // End of for
	} // End of if
}

/**
 * Load the status of Ganglia for a given group
 * 
 * @param data
 *            Data returned from HTTP request
 * @return Nothing
 */
function loadGangliaStatus(data) {
	// Get datatable
	var datatable = $('#' + nodesTableId).dataTable();
	var ganglia = data.rsp;
	var rowNum, node, status, args;

	for ( var i in ganglia) {
		// ganglia[0] = nodeName and ganglia[1] = state
		node = jQuery.trim(ganglia[i][0]);
		status = jQuery.trim(ganglia[i][1]);

		// Get the row containing the node
		rowNum = findRow(node, '#' + nodesTableId, 1);

		// Update the power status column
		datatable.fnUpdate(status, rowNum, 4);
	}

	// Hide Ganglia loader
	var gangliaCol = $('#' + nodesTableId + ' thead tr th').eq(4);
	gangliaCol.find('img').hide();
}

/**
 * Refresh the status of Ganglia for each node
 * 
 * @param group
 *            Group name
 * @return Nothing
 */
function refreshGangliaStatus(group) {
	// Show ganglia loader
	var gangliaCol = $('#' + nodesTableId + ' thead tr th').eq(4);
	gangliaCol.find('img').show();
	
	// Get power status for nodes shown
	var nodes = getNodesShown(nodesTableId);

	// Get the status of Ganglia
	$.ajax( {
		url : 'lib/cmd.php',
		dataType : 'json',
		data : {
			cmd : 'webrun',
			tgt : '',
			args : 'gangliastatus;' + nodes,
			msg : ''
		},

		success : loadGangliaStatus
	});
}

/**
 * Load power status for each node
 * 
 * @param data
 *            Data returned from HTTP request
 * @return Nothing
 */
function loadPowerStatus(data) {
	var dTable = $('#' + nodesTableId).dataTable();
	var power = data.rsp;
	var rowPos, node, status, args;

	for (var i in power) {
		// power[0] = nodeName and power[1] = state
		args = power[i].split(':');
		node = jQuery.trim(args[0]);
		status = jQuery.trim(args[1]);
		
		// Get the row containing the node
		rowPos = findRow(node, '#' + nodesTableId, 1);

		// Update the power status column
		dTable.fnUpdate(status, rowPos, 3, false);
	}
	
	// Hide power loader
	var powerCol = $('#' + nodesTableId + ' thead tr th').eq(3);
	powerCol.find('img').hide();
}

/**
 * Refresh power status for each node
 * 
 * @param group
 *            Group name
 * @param tableId
 * 			  Table to update node status
 * @return Nothing
 */
function refreshPowerStatus(group, tableId) {
	// Show power loader
	var powerCol = $('#' + tableId + ' thead tr th').eq(3);
	powerCol.find('img').show();
	
	// Get power status for nodes shown
	var nodes = getNodesShown(tableId);
		
	// Get power status
	$.ajax( {
		url : 'lib/cmd.php',
		dataType : 'json',
		data : {
			cmd : 'rpower',
			tgt : nodes,
			args : 'stat',
			msg : ''
		},

		success : loadPowerStatus
	});
}

/**
 * Load node status for each node
 * 
 * @param data
 *            Data returned from HTTP request
 * @return Nothing
 */
function loadNodeStatus(data) {
	var dTable = $('#' + nodesTableId).dataTable();
	var rsp = data.rsp;
	var args, rowPos, node, status;

	// Get all nodes within datatable
	for (var i in rsp) {
		args = rsp[i].split(':');
		
		// args[0] = node and args[1] = status
		node = jQuery.trim(args[0]);
		status = jQuery.trim(args[1]).replace('sshd', 'ping');
		
		// Get row containing node
		rowPos = findRow(node, '#' + nodesTableId, 1);

		// Update ping status column
		dTable.fnUpdate(status, rowPos, 2, false);
	}
	
	// Hide status loader
	var statCol = $('#' + nodesTableId + ' thead tr th').eq(2);
	statCol.find('img').hide();
}

/**
 * Refresh ping status for each node
 * 
 * @param group
 *            Group name
 * @param tableId
 * 			  Table to update node status
 * @return Nothing
 */
function refreshNodeStatus(group, tableId) {
	// Show ping loader
	var pingCol = $('#' + tableId + ' thead tr th').eq(2);
	pingCol.find('img').show();
	
	// Get power status for nodes shown
	var nodes = getNodesShown(tableId);
	
	// Get the node status
	$.ajax( {
		url : 'lib/cmd.php',
		dataType : 'json',
		data : {
			cmd : 'nodestat',
			tgt : nodes,
			args : '-u',
			msg : ''
		},

		success : loadNodeStatus
	});
}

/**
 * Load inventory for given node
 * 
 * @param e
 *            Windows event
 * @return Nothing
 */
function loadNode(e) {
	if (!e) {
		e = window.event;
	}
	
	// Get node that was clicked
	var node = (e.target) ? e.target.id : e.srcElement.id;
	var mgt = getNodeAttr(node, 'mgt');
		
	// Create an instance of the plugin
	var plugin;
	switch(mgt) {
		case "blade":
    		plugin = new bladePlugin();
    		break;
		case "fsp":
			plugin = new fspPlugin();
			break;
		case "hmc":
			plugin = new hmcPlugin();
			break;
		case "ipmi":
			plugin = new ipmiPlugin();
			break;		
		case "ivm":
			plugin = new ivmPlugin();
			break;
		case "zvm":
			plugin = new zvmPlugin();
			break;
	}

	// Get tab area where a new tab will be inserted
	var myTab = getNodesTab();
	var inst = 0;
	var newTabId = 'nodeTab' + inst;
	while ($('#' + newTabId).length) {
		// If one already exists, generate another one
		inst = inst + 1;
		newTabId = 'nodeTab' + inst;
	}
	// Reset node process
	$.cookie(node + 'Processes', 0);

	// Add new tab, only if one does not exist
	var loader = createLoader(newTabId + 'TabLoader');
	loader = $('<center></center>').append(loader);
	myTab.add(newTabId, node, loader, true);

	// Get node inventory
	var msg = 'out=' + newTabId + ',node=' + node;
	$.ajax( {
		url : 'lib/cmd.php',
		dataType : 'json',
		data : {
			cmd : 'rinv',
			tgt : node,
			args : 'all',
			msg : msg
		},

		success : plugin.loadInventory
	});

	// Select new tab
	myTab.select(newTabId);
}

/**
 * Unlock a node by setting the ssh keys
 * 
 * @param tgtNodes
 *            Nodes to unlock
 * @return Nothing
 */
function loadUnlockPage(tgtNodes) {
	// Get nodes tab
	var tab = getNodesTab();

	// Generate new tab ID
	var instance = 0;
	var newTabId = 'unlockTab' + instance;
	while ($('#' + newTabId).length) {
		// If one already exists, generate another one
		instance = instance + 1;
		newTabId = 'unlockTab' + instance;
	}

	var unlockForm = $('<div class="form"></div>');

	// Create status bar, hide on load
	var statBarId = 'unlockStatusBar' + instance;
	var statusBar = createStatusBar(statBarId).hide();
	unlockForm.append(statusBar);

	// Create loader
	var loader = createLoader('');
	statusBar.find('div').append(loader);

	// Create info bar
	var infoBar = createInfoBar('Give the root password for this node range to setup its SSH keys.');
	unlockForm.append(infoBar);

	unlockForm.append('<div><label>Target node range:</label><input type="text" id="node" name="node" readonly="readonly" value="' + tgtNodes + '" title="The node or node range to unlock"/></div>');
	unlockForm.append('<div><label>Password:</label><input type="password" id="password" name="password" title="The root password to unlock this node"/></div>');

	// Generate tooltips
	unlockForm.find('div input[title]').tooltip({
		position: "center right",
		offset: [-2, 10],
		effect: "fade",
		opacity: 0.7,
		predelay: 800,
		events : {
			def : "mouseover,mouseout",
			input : "mouseover,mouseout",
			widget : "focus mouseover,blur mouseout",
			tooltip : "mouseover,mouseout"
		}
	});
	
	/**
	 * Ok
	 */
	var okBtn = createButton('Ok');
	okBtn.click(function() {
		// Remove any warning messages
		$(this).parent().parent().find('.ui-state-error').remove();
		
		// If a password is given
		var password = $('#' + newTabId + ' input[name=password]').css('border', 'solid #BDBDBD 1px');
		if (password.val()) {
			// Setup SSH keys
    		$.ajax( {
    			url : 'lib/cmd.php',
    			dataType : 'json',
    			data : {
    				cmd : 'webrun',
    				tgt : '',
    				args : 'unlock;' + tgtNodes + ';' + password.val(),
    				msg : 'out=' + statBarId + ';cmd=unlock;tgt=' + tgtNodes
    			},
    
    			success : updateStatusBar
    		});
    
    		// Show status bar
    		statusBar.show();
    
    		// Disable all inputs and Ok button
			$('#' + newTabId + ' input').attr('disabled', 'disabled');
    		$(this).attr('disabled', 'true');
    	} else {
    		// Show warning message
			var warn = createWarnBar('You are missing some values!');
			warn.prependTo($(this).parent().parent());
			password.css('border', 'solid #FF0000 1px');
    	}
    });

	unlockForm.append(okBtn);
	tab.add(newTabId, 'Unlock', unlockForm, true);
	tab.select(newTabId);
}

/**
 * Load script page
 * 
 * @param tgtNodes
 *            Targets to run script against
 * @return Nothing
 */
function loadScriptPage(tgtNodes) {
	// Get nodes tab
	var tab = getNodesTab();

	// Generate new tab ID
	var inst = 0;
	var newTabId = 'scriptTab' + inst;
	while ($('#' + newTabId).length) {
		// If one already exists, generate another one
		inst = inst + 1;
		newTabId = 'scriptTab' + inst;
	}

	// Open new tab
	// Create remote script form
	var scriptForm = $('<div class="form"></div>');

	// Create status bar
	var barId = 'scriptStatusBar' + inst;
	var statBar = createStatusBar(barId);
	statBar.hide();
	scriptForm.append(statBar);

	// Create loader
	var loader = createLoader('scriptLoader' + inst);
	statBar.find('div').append(loader);

	// Create info bar
	var infoBar = createInfoBar('Load a script to run against this node range.');
	scriptForm.append(infoBar);

	// Target node or group
	var tgt = $('<div><label for="target">Target node range:</label><input type="text" name="target" value="' + tgtNodes + '" title="The node or node range to run a given script against"/></div>');
	scriptForm.append(tgt);

	// Upload file
	var upload = $('<form action="lib/upload.php" method="post" enctype="multipart/form-data"></form>');
	var label = $('<label for="file">Remote file:</label>');
	var file = $('<input type="file" name="file" id="file"/>');
	var subBtn = createButton('Load');
	upload.append(label);
	upload.append(file);
	upload.append(subBtn);
	scriptForm.append(upload);
	
	// Generate tooltips
	scriptForm.find('div input[title]').tooltip({
		position: "center right",
		offset: [-2, 10],
		effect: "fade",
		opacity: 0.7,
		predelay: 800,
		events : {
			def : "mouseover,mouseout",
			input : "mouseover,mouseout",
			widget : "focus mouseover,blur mouseout",
			tooltip : "mouseover,mouseout"
		}
	});

	// Script
	var script = $('<div><label>Script:</label><textarea/>');
	scriptForm.append(script);

	// Ajax form options
	var options = {
		// Output to text area
		target : '#' + newTabId + ' textarea'
	};
	upload.ajaxForm(options);

	/**
	 * Run
	 */
	var runBtn = createButton('Run');
	runBtn.click(function() {
		// Remove any warning messages
		$(this).parent().parent().find('.ui-state-error').remove();
		
		// Get script to run
		var textarea = $('#' + newTabId + ' textarea').css('border', 'solid #BDBDBD 1px');
		
		// If no inputs are empty
		if (textarea.val()) {
			// Run script
			runScript(inst);
		} else {
			// Show warning message
			var warn = createWarnBar('You are missing some values');
			warn.prependTo($(this).parent().parent());
			textarea.css('border', 'solid #FF0000 1px');
		}
	});
	scriptForm.append(runBtn);

	// Append to discover tab
	tab.add(newTabId, 'Script', scriptForm, true);

	// Select new tab
	tab.select(newTabId);
}

/**
 * Sort a list
 * 
 * @return Sorted list
 */
jQuery.fn.sort = function() {
	return this.pushStack([].sort.apply(this, arguments), []);
};

function sortAlpha(a, b) {
	return a.innerHTML > b.innerHTML ? 1 : -1;
};

/**
 * Power on a given node
 * 
 * @param node
 *            Node to power on or off
 * @param power2
 *            Power node to given state
 * @return Nothing
 */
function powerNode(node, power2) {
	node = node.replace('Power', '');
	$.ajax( {
		url : 'lib/cmd.php',
		dataType : 'json',
		data : {
			cmd : 'rpower',
			tgt : node,
			args : power2,
			msg : node
		},

		success : updatePowerStatus
	});
}

/**
 * Load delete node page
 * 
 * @param tgtNodes
 *            Nodes to delete
 * @return Nothing
 */
function loadDeletePage(tgtNodes) {
	// Get nodes tab
	var myTab = getNodesTab();

	// Generate new tab ID
	var inst = 0;
	newTabId = 'deleteTab' + inst;
	while ($('#' + newTabId).length) {
		// If one already exists, generate another one
		inst = inst + 1;
		newTabId = 'deleteTab' + inst;
	}

	// Create status bar, hide on load
	var statBarId = 'deleteStatusBar' + inst;
	var statBar = createStatusBar(statBarId).hide();

	// Create loader
	var loader = createLoader('');
	statBar.find('div').append(loader);
	statBar.hide();

	// Create target nodes string
	var tgtNodesStr = '';
	var nodes = tgtNodes.split(',');
	// Loop through each node
	for (var i in nodes) {
		// If it is the 1st and only node
		if (i == 0 && i == nodes.length - 1) {
			tgtNodesStr += nodes[i];
		}
		// If it is the 1st node of many nodes
		else if (i == 0 && i != nodes.length - 1) {
			// Append a comma to the string
			tgtNodesStr += nodes[i] + ', ';
		} else {
			// If it is the last node
			if (i == nodes.length - 1) {
				// Append nothing to the string
				tgtNodesStr += nodes[i];
			} else {
				// Append a comma to the string
				tgtNodesStr += nodes[i] + ', ';
			}
		}
	}

	// Create delete form
	var deleteForm = $('<div class="form"></div>');
	deleteForm.append(statBar);
	deleteForm.append(statBar);
	
	// Confirm delete
	var instr = $('<p>Are you sure you want to delete ' + tgtNodesStr + '?</p>').css('word-wrap', 'break-word');
	deleteForm.append(instr);

	/**
	 * Delete
	 */
	var deleteBtn = createButton('Delete');
	deleteBtn.click(function() {
		// Delete the virtual server
		$.ajax( {
			url : 'lib/cmd.php',
			dataType : 'json',
			data : {
				cmd : 'rmvm',
				tgt : tgtNodes,
				args : '',
				msg : 'out=' + statBarId + ';cmd=rmvm;tgt=' + tgtNodes
			},

			success : updateStatusBar
		});

		// Show status bar loader
		statBar.show();

		// Disable delete button
		$(this).attr('disabled', 'true');
	});
	
	/**
	 * Cancel
	 */
	var cancelBtn = createButton('Cancel');
	cancelBtn.bind('click', function(){
		myTab.remove($(this).parent().parent().attr('id'));
	});

	deleteForm.append(deleteBtn);
	deleteForm.append(cancelBtn);
	myTab.add(newTabId, 'Delete', deleteForm, true);

	myTab.select(newTabId);
}

/**
 * Update status bar of a given tab
 * 
 * @param data
 *            Data returned from HTTP request
 * @return Nothing
 */
function updateStatusBar(data) {
	// Get ajax response
	var rsp = data.rsp;
	var args = data.msg.split(';');
	var statBarId = args[0].replace('out=', '');
	var cmd = args[1].replace('cmd=', '');
	var tgts = args[2].replace('tgt=', '').split(',');

	if (cmd == 'unlock' || cmd == 'updatenode') {
		// Hide loader
		$('#' + statBarId).find('img').hide();

		// Write ajax response to status bar
		var prg = writeRsp(rsp, '');	
		$('#' + statBarId).find('div').append(prg);	
	} else if (cmd == 'rmvm') {
		// Get data table
		var dTable = $('#' + nodesTableId).dataTable();
		var failed = false;

		// Hide loader
		$('#' + statBarId).find('img').hide();

		// Write ajax response to status bar
		var prg = writeRsp(rsp, '');	
		$('#' + statBarId).find('div').append(prg);	
		
		// If there was an error, do not continue
		if (prg.html().indexOf('Error') > -1) {
			failed = true;
		}

		// Update data table
		var rowPos;
		for (var i in tgts) {
			if (!failed) {
				// Get row containing the node link and delete it
				rowPos = findRow(tgts[i], '#' + nodesTableId, 1);
				dTable.fnDeleteRow(rowPos);
			}
		}
	} else if (cmd == 'xdsh') {
		// Hide loader
		$('#' + statBarId).find('img').hide();
		
		// Write ajax response to status bar
		var prg = $('<pre></pre>');
		for (var i in rsp) {
			for (var j in tgts) {
				rsp[i] = rsp[i].replace(new RegExp(tgts[j] + ':', 'g'), '');
			}

			prg.append(rsp[i]);
			prg.append('<br>');	
		}
		$('#' + statBarId).find('div').append(prg);	
		
		// Enable fields
		$('#' + statBarId).parent().find('input').removeAttr('disabled');
		$('#' + statBarId).parent().find('textarea').removeAttr('disabled');
		
		// Enable buttons
		$('#' + statBarId).parent().find('button').removeAttr('disabled');
	} else {
		// Hide loader
		$('#' + statBarId).find('img').hide();
		
		// Write ajax response to status bar
		var prg = writeRsp(rsp, '[A-Za-z0-9._-]+:');	
		$('#' + statBarId).find('div').append(prg);	
	}
}

/**
 * Update power status of a node in the datatable
 * 
 * @param data
 *            Data from HTTP request
 * @return Nothing
 */
function updatePowerStatus(data) {
	// Get datatable
	var dTable = $('#' + nodesTableId).dataTable();

	// Get xCAT response
	var rsp = data.rsp;
	// Loop through each line
	var node, status, rowPos, strPos;
	for (var i in rsp) {
		// Get node name
		node = rsp[i].split(":")[0];

		// If there is no error
		if (rsp[i].indexOf("Error") < 0 || rsp[i].indexOf("Failed") < 0) {
			// Get the row containing the node link
			rowPos = findRow(node, '#' + nodesTableId, 1);

			// If it was power on, then the data return would contain "Starting"
			strPos = rsp[i].indexOf("Starting");
			if (strPos > -1) {
				status = 'on';
			} else {
				status = 'off';
			}

			// Update the power status column
			dTable.fnUpdate(status, rowPos, 3, false);
		} else {
			// Power on/off failed
			alert(rsp[i]);
		}
	}
}

/**
 * Run a script
 * 
 * @param inst
 *            Remote script tab instance
 * @return Nothing
 */
function runScript(inst) {
	// Get tab ID
	var tabId = 'scriptTab' + inst;
	// Get node name
	var tgts = $('#' + tabId + ' input[name=target]').val();
	// Get script
	var script = $('#' + tabId + ' textarea').val();
	
	var statBarId = 'scriptStatusBar' + inst;
	$('#' + statBarId).show();					// Show status bar
	$('#' + statBarId + ' img').show();			// Show loader
	$('#' + statBarId + ' p').remove();			// Clear status bar

	// Disable all fields
	$('#' + tabId + ' input').attr('disabled', 'true');
	$('#' + tabId + ' textarea').attr('disabled', 'true');
	
	// Disable buttons
	$('#' + tabId + ' button').attr('disabled', 'true');

	// Run script
	$.ajax( {
		url : 'lib/zCmd.php',
		dataType : 'json',
		data : {
			cmd : 'xdsh',
			tgt : tgts,
			args : '-e',
			att : script,
			msg : 'out=scriptStatusBar' + inst + ';cmd=xdsh;tgt=' + tgts
		},

		success : updateStatusBar
	});
}

/**
 * Get an attribute of a given node
 * 
 * @param node
 *            The node
 * @param attrName
 *            The attribute
 * @return The attribute of the node
 */
function getNodeAttr(node, attrName) {
	// Get the row
	var row = $('[id=' + node + ']').parent().parent();

	// Search for the column containing the attribute
	var attrCol;
	var cols = row.parent().parent().find('th:contains("' + attrName + '")');
	// Loop through each column
	for (var i in cols) {
		// Find column that matches the attribute
		if (cols.eq(i).html() == attrName) {
			attrCol = cols.eq(i);
			break;
		}
	}
	
	// If the column containing the attribute is found
	if (attrCol) {
		// Get the attribute column index
		var attrIndex = attrCol.index();

		// Get the attribute for the given node
		var attr = row.find('td:eq(' + attrIndex + ')');
		return attr.text();
	} else {
		return '';
	}
}

/**
 * Set a cookie for the OS images
 * 
 * @param data
 *            Data from HTTP request
 * @return Nothing
 */
function setOSImageCookies(data) {
	// Get response
	var rsp = data.rsp;

	var imageNames = new Array;
	var profilesHash = new Object();
	var osVersHash = new Object();
	var osArchsHash = new Object();
	var imagePos = 0;
	var profilePos = 0;
	var osversPos = 0;
	var osarchPos = 0;
	//get the column value
	var colNameArray = rsp[0].substr(1).split(',');
	for (var i in colNameArray){
		switch (colNameArray[i]){
			case 'imagename': {
				imagePos = i;
			}
			break;
			case 'profile':{
				profilePos = i;
			}
			break;
			case 'osvers':{
				osversPos = i;
			}
			break;
			case 'osarch':{
				osarchPos = i;
			}
			break;
			default :
			break;
		}
	}
	// Go through each index
	for (var i = 1; i < rsp.length; i++) {
		// Get image name
		var cols = rsp[i].split(',');
		var osImage = cols[imagePos].replace(new RegExp('"', 'g'), '');
		var profile = cols[profilePos].replace(new RegExp('"', 'g'), '');
		var osVer = cols[osversPos].replace(new RegExp('"', 'g'), '');
		var osArch = cols[osarchPos].replace(new RegExp('"', 'g'), '');
		
		imageNames.push(osImage);
		profilesHash[profile] = 1;
		osVersHash[osVer] = 1;
		osArchsHash[osArch] = 1;
	}

	// Save image names in a cookie
	$.cookie('imagenames', imageNames);

	// Save profiles in a cookie
	var tmp = new Array;
	for (var key in profilesHash) {
		tmp.push(key);
	}
	$.cookie('profiles', tmp);

	// Save OS versions in a cookie
	tmp = new Array;
	for (var key in osVersHash) {
		tmp.push(key);
	}
	$.cookie('osvers', tmp);

	// Save OS architectures in a cookie
	tmp = new Array;
	for (var key in osArchsHash) {
		tmp.push(key);
	}
	$.cookie('osarchs', tmp);
}

/**
 * Set a cookie for the groups
 * 
 * @param data
 *            Data from HTTP request
 * @return Nothing
 */
function setGroupsCookies(data) {
	var rsp = data.rsp;
	$.cookie('groups', rsp);
}

/**
 * Get nodes that are checked in a given datatable
 * 
 * @param datatableId
 *            The datatable ID
 * @return Nodes that were checked
 */
function getNodesChecked(datatableId) {
	var tgts = '';

	// Get nodes that were checked
	var nodes = $('#' + datatableId + ' input[type=checkbox]:checked');
	for (var i in nodes) {
		var tgtNode = nodes.eq(i).attr('name');
		
		if (tgtNode){
			tgts += tgtNode;
			
			// Add a comma at the end
			if (i < nodes.length - 1) {
				tgts += ',';
			}
		}
	}

	return tgts;
}

/**
 * Find the row index containing a column with a given string
 * 
 * @param str
 *            String to search for
 * @param table
 *            Table to check
 * @param col
 *            Column to find string under
 * @return The row index containing the search string
 */
function findRow(str, table, col){
	var dTable, rows, cols;
	
	// Get datatable
	dTable = $(table).dataTable();
	rows = dTable.fnGetData();
	
	// Loop through each row
	for (var i in rows) {
		// If the column contains the search string
		if (rows[i][col].indexOf(str) > -1) {
			return i;
		}
	}
	
	return -1;
}

/**
 * Select all checkboxes in the datatable
 * 
 * @param event
 *            Event on element
 * @param obj
 *            Object triggering event
 * @return Nothing
 */
function selectAllCheckbox(event, obj) {
	// Get datatable ID
	// This will ascend from <input> <td> <tr> <thead> <table>
	var tableObj = obj.parent().parent().parent().parent();
	var status = obj.attr('checked');
	tableObj.find(' :checkbox').attr('checked', status);
	event.stopPropagation();
}

/**
 * Load rcons page
 * 
 * @param tgtNodes
 *            Targets to run rcons against
 * @return Nothing
 */
function loadRconsPage(tgtNodes){
	var hostName = window.location.host;
	var urlPath = window.location.pathname;
	var redirectUrl = 'https://';
	var pos = 0;
	
	// We only support one node
	if (-1 != tgtNodes.indexOf(',')){
		alert("You can only open one console at a time!");
		return;
	}
	
	redirectUrl += hostName;
	pos = urlPath.lastIndexOf('/');
	redirectUrl += urlPath.substring(0, pos + 1);
	redirectUrl += 'rconsShow.php';
	
	// Open the rcons page
	window.open(redirectUrl + "?rconsnd=" + tgtNodes, '', "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=670,height=436");
}

/**
 * Flag the node in the group table to update
 * 
 * @param node
 *            The node name
 * @return Nothing
 */
function flagNode2Update(node) {
	// Get list containing current nodes to update
	var nodes = $.cookie('nodes2update');

	// If the node is not in the list
	if (nodes.indexOf(node) == -1) {
		// Add the new node to list
		nodes += node + ';';
		$.cookie('nodes2update', nodes);
	}
}

/**
 * Update node attributes
 * 
 * @param group
 *            The node group name
 * @return Nothing
 */
function updateNodeAttrs(group) {
	// Get the nodes datatable
	var dTable = $('#' + nodesTableId).dataTable();
	// Get all nodes within the datatable
	var rows = dTable.fnGetNodes();
	
	// Get table headers
	var headers = $('#' + nodesTableId + ' thead tr th');
							
	// Get list of nodes to update
	var nodesList = $.cookie('nodes2update');
	var nodes = nodesList.split(';');
	
	// Create the arguments
	var args;
	var rowPos, colPos, value;
	var attrName;
	// Go through each node where an attribute was changed
	for (var i in nodes) {
		if (nodes[i]) {
			args = '';
			
        	// Get the row containing the node link
        	rowPos = findRow(nodes[i], '#' + nodesTableId, 1);
        	$(rows[rowPos]).find('td').each(function (){
        		if ($(this).css('color') == 'red' || $(this).css('color') == 'rgb(255, 0, 0)') {
        			// Change color back to normal
        			$(this).css('color', '');
        			
        			// Get column position
        			colPos = $(this).parent().children().index($(this));
        			// Get column value
        			value = $(this).text();
        			
        			// Get attribute name
        			attrName = jQuery.trim(headers.eq(colPos).text());
        			        			
        			// Build argument string
        			if (args) {
        				// Handle subsequent arguments
        				args += ';' + attrName + '=' + value;
        			} else {
        				// Handle the 1st argument
        				args += attrName + '=' + value;
        			}		
        		}
        	});
        	        	
        	// Send command to change node attributes
        	$.ajax( {
        		url : 'lib/cmd.php',
        		dataType : 'json',
        		data : {
        			cmd : 'chdef',
        			tgt : '',
        			args : '-t;node;-o;' + nodes[i] + ';' + args,
        			msg : 'out=nodesTab;tgt=' + nodes[i]
        		},

        		success: showChdefOutput
        	});
		} // End of if
	} // End of for
	
	// Clear cookie containing list of nodes where
	// their attributes need to be updated
	$.cookie('nodes2update', '');
}

/**
 * Restore node attributes to their original content
 * 
 * @return Nothing
 */
function restoreNodeAttrs() {
	// Get list of nodes to update
	var nodesList = $.cookie('nodes2update');
	var nodes = nodesList.split(';');
	
	// Get the nodes datatable
	var dTable = $('#' + nodesTableId).dataTable();
	// Get table headers
	var headers = $('#' + nodesTableId + ' thead tr th');
	// Get all nodes within the datatable
	var rows = dTable.fnGetNodes();
		
	// Go through each node where an attribute was changed
	var rowPos, colPos;
	var attrName, origVal;
	for (var i in nodes) {
		if (nodes[i]) {			
			// Get the row containing the node link
        	rowPos = findRow(nodes[i], '#' + nodesTableId, 1);
        	$(rows[rowPos]).find('td').each(function (){
        		if ($(this).css('color') == 'red' || $(this).css('color') == 'rgb(255, 0, 0)') {
        			// Change color back to normal
        			$(this).css('color', '');
        			
        			// Get column position
        			colPos = $(this).parent().children().index($(this));	        			
        			// Get attribute name
        			attrName = jQuery.trim(headers.eq(colPos).text());
        			// Get original content
        			origVal = origAttrs[nodes[i]][attrName];
        			
        			// Update column
        			dTable.fnUpdate(origVal, rowPos, colPos, false);
        		}
        	});
		} // End of if
	} // End of for
	
	// Clear cookie containing list of nodes where their attributes need to be updated
	$.cookie('nodes2update', '');
}

/**
 * Create a tool tip for comments
 * 
 * @param comment
 *            Comments to be placed in a tool tip
 * @return Tool tip
 */
function createCommentsToolTip(comment) {
	// Create tooltip container
	var toolTip = $('<div class="tooltip"></div>');
	// Create textarea to hold comment
	var txtArea = $('<textarea>' + comment + '</textarea>').css({
		'font-size': '10px',
		'height': '50px',
		'width': '200px',
		'background-color': '#000',
		'color': '#fff',
		'border': '0px',
		'display': 'block'
	});
	
	// Create links to save and cancel changes
	var lnkStyle = {
		'color': '#58ACFA',
		'font-size': '10px',
		'display': 'inline-block',
		'padding': '5px',
		'float': 'right'
	};
	
	var saveLnk = $('<a>Save</a>').css(lnkStyle).hide();
	var cancelLnk = $('<a>Cancel</a>').css(lnkStyle).hide();
	var infoSpan = $('<span>Click to edit</span>').css(lnkStyle);
	
	// Save changes onclick
	saveLnk.bind('click', function(){
		// Get node and comment
		var node = $(this).parent().parent().find('img').attr('id').replace('Tip', '');
		var comments = $(this).parent().find('textarea').val();
		
		// Save comment
		$.ajax( {
    		url : 'lib/cmd.php',
    		dataType : 'json',
    		data : {
    			cmd : 'chdef',
    			tgt : '',
    			args : '-t;node;-o;' + node + ';usercomment=' + comments,
    			msg : 'out=nodesTab;tgt=' + node
    		},
    		
    		success: showChdefOutput
		});
		
		// Hide cancel and save links
		$(this).hide();
		cancelLnk.hide();
	});
		
	// Cancel changes onclick
	cancelLnk.bind('click', function(){
		// Get original comment and put it back
		var orignComments = $(this).parent().find('textarea').text();
		$(this).parent().find('textarea').val(orignComments);
		
		// Hide cancel and save links
		$(this).hide();
		saveLnk.hide();
		infoSpan.show();
	});
	
	// Show save link when comment is edited
	txtArea.bind('click', function(){
		saveLnk.show();
		cancelLnk.show();
		infoSpan.hide();
	});
		
	toolTip.append(txtArea);
	toolTip.append(cancelLnk);
	toolTip.append(saveLnk);
	toolTip.append(infoSpan);
	
	return toolTip;
}

/**
 * Create a tool tip for node status
 * 
 * @return Tool tip
 */
function createStatusToolTip() {
	// Create tooltip container
	var toolTip = $('<div class="tooltip"></div>').css({
		'width': '150px'
	});
	
	// Create info text
	var info = $('<p></p>');
	info.append('Click here to refresh the node status. To configure the xCAT monitor, ');
	
	// Create link to turn on xCAT monitoring
	var monitorLnk = $('<a>click here</a>').css({
		'color': '#58ACFA',
		'font-size': '10px'
	});
	
	// Open dialog to configure xCAT monitor
	monitorLnk.bind('click', function(){
		// Check if xCAT monitor is enabled
		$.ajax( {
			url : 'lib/cmd.php',
			dataType : 'json',
			data : {
				cmd : 'monls',
				tgt : '',
				args : 'xcatmon',
				msg : ''
			},

			success : openConfXcatMon
		});
	});
	
	info.append(monitorLnk);
	toolTip.append(info);
	
	return toolTip;
}

/**
 * Create a tool tip for power status
 * 
 * @return Tool tip
 */
function createPowerToolTip() {
	// Create tooltip container
	var toolTip = $('<div class="tooltip">Click here to refresh the power status</div>').css({
		'width': '150px'
	});	
	return toolTip;
}

/**
 * Create a tool tip for monitoring status
 * 
 * @return Tool tip
 */
function createMonitorToolTip() {
	// Create tooltip container
	var toolTip = $('<div class="tooltip">Click here to refresh the monitoring status</div>').css({
		'width': '150px'
	});	
	return toolTip;
}

/**
 * Open dialog to configure xCAT monitor
 * 
 * @param data
 *            Data returned from HTTP request
 * @return Nothing
 */
function openConfXcatMon(data) {
	// Create info bar
	var info = createInfoBar('Configure the xCAT monitor. Select to enable or disable the monitor below.');
	var dialog = $('<div></div>');
	dialog.append(info);
	
	// Create status area
	var statusArea = $('<div></div>').css('padding-top', '10px');
	var label = $('<label>Status:</label>');
	statusArea.append(label);
	
	// Get xCAT monitor status
	var status = data.rsp[0];
	var buttons;
	// If xCAT monitor is disabled
	if (status.indexOf('not-monitored') > -1) {
		status = $('<span>Disabled</span>').css('padding', '0px 5px');
		statusArea.append(status);
		
		// Create enable and cancel buttons
		buttons = {
			"Enable": function(){
				// Enable xCAT monitor
    			$.ajax({
    				url : 'lib/cmd.php',
    				dataType : 'json',
    				data : {
    					cmd : 'monstart',
    					tgt : '',
    					args : 'xcatmon',
    					msg : ''
    				},
    
    				success : function(data){
    					openDialog('info', data.rsp[0]);
    				}
    			});
				$(this).dialog("close");
			},
			"Cancel": function(){ 
				$(this).dialog("close");
			}
		};
	} else {
		status = $('<span>Enabled</span>').css('padding', '0px 5px');
		statusArea.append(status);
		
		// Create disable and cancel buttons
		buttons = {
			"Disable": function(){
				// Disable xCAT monitor
    			$.ajax({
    				url : 'lib/cmd.php',
    				dataType : 'json',
    				data : {
    					cmd : 'monstop',
    					tgt : '',
    					args : 'xcatmon',
    					msg : ''
    				},
    
    				success : function(data){
    					openDialog('info', data.rsp[0]);
    				}
    			});
				$(this).dialog("close");
			},
			"Cancel": function(){ 
				$(this).dialog("close");
			}
		};
	}
	
	dialog.append(statusArea);
	
	// Open dialog
	dialog.dialog({
		modal: true,
		width: 500,
		buttons: buttons
	});
}

/**
 * Show chdef output
 * 
 * @param data
 *            Data returned from HTTP request
 * @return Nothing
 */
function showChdefOutput(data) {
	// Get output
	var out = data.rsp;
	var args = data.msg.split(';');
	var tabID = args[0].replace('out=', '');
	var tgt = args[1].replace('tgt=', '');
	
	// Find info bar on nodes tab, if any
	var info = $('#' + tabID).find('.ui-state-highlight');
	if (!info.length) {
		// Create info bar if one does not exist
		info = createInfoBar('');
		$('#' + tabID).append(info);
	}
		
	// Go through output and append to paragraph
	var prg = $('<p></p>');
	for (var i in out) {
		prg.append(tgt + ': ' + out[i] + '<br>');
	}
	
	info.append(prg);
}

/**
 * Set node attributes
 * 
 * @param data
 *            Data returned from HTTP request
 * @return Nothing
 */
function setNodeAttrs(data) {
	// Clear hash table containing definable node attributes
	nodeAttrs = new Array();
	
	// Get definable attributes
	var attrs = data.rsp[2].split(/\n/);

	// Go through each line
	var attr, key, descr;
	for (var i in attrs) {
		attr = attrs[i];
		
		// If the line is not empty
		if (attr) {
			// If the line has the attribute name
			if (attr.indexOf(':') && attr.indexOf(' ')) {
    			// Get attribute name and description
    			key = jQuery.trim(attr.substring(0, attr.indexOf(':')));
    			descr = jQuery.trim(attr.substring(attr.indexOf(':') + 1));
    			
    			// Remove arrow brackets
    			descr = descr.replace(new RegExp('<|>', 'g'), '');
    			
    			// Set hash table where key = attribute name and value =
				// description
        		nodeAttrs[key] = descr;
			} else {
				// Remove arrow brackets
				attr = attr.replace(new RegExp('<|>', 'g'), '');
    			
				// Append description to hash table
				nodeAttrs[key] = nodeAttrs[key] + '\n' + attr;
			}
		} // End of if
	} // End of for
}

/**
 * Load set node properties page
 * 
 * @param tgtNode
 *            Target node to set properties
 * @return Nothing
 */
function loadEditPropsPage(tgtNode) {
	// Get nodes tab
	var tab = getNodesTab();

	// Generate new tab ID
	var inst = 0;
	var newTabId = 'editPropsTab' + inst;
	while ($('#' + newTabId).length) {
		// If one already exists, generate another one
		inst = inst + 1;
		newTabId = 'editPropsTab' + inst;
	}

	// Open new tab
	// Create set properties form
	var editPropsForm = $('<div class="form"></div>');

	// Create info bar
	var infoBar = createInfoBar('Choose the properties you wish to change on the node. When you are finished, click Save.');
	editPropsForm.append(infoBar);

	// Create an input for each definable attribute
	var div, label, input, descr, value;
	// Set node attribute
	origAttrs[tgtNode]['node'] = tgtNode;
	for (var key in nodeAttrs) {
		// If an attribute value exists
		if (origAttrs[tgtNode][key]) {
			// Set the value
			value = origAttrs[tgtNode][key];
		} else {
			value = '';
		}
		
		// Create label and input for attribute
		div = $('<div></div>').css('display', 'inline');
		label = $('<label>' + key + ':</label>').css('vertical-align', 'middle');
		input = $('<input type="text" value="' + value + '" title="' + nodeAttrs[key] + '"/>').css('margin-top', '5px');
		
		// Change border to blue onchange
		input.bind('change', function(event) {
			$(this).css('border-color', 'blue');
		});
		
		div.append(label);
		div.append(input);
		editPropsForm.append(div);
	}

	// Change style for last division
	div.css({
		'display': 'block',
		'margin': '0px 0px 10px 0px'
	});
	
	// Generate tooltips
	editPropsForm.find('div input[title]').tooltip({
		position: "center right",
		offset: [-2, 10],
		effect: "fade",
		opacity: 0.8,
		delay: 0,
		predelay: 800,
		events: {
			  def:     "mouseover,mouseout",
			  input:   "mouseover,mouseout",
			  widget:  "focus mouseover,blur mouseout",
			  tooltip: "mouseover,mouseout"
		}
	});

	/**
	 * Save
	 */
	var saveBtn = createButton('Save');
	saveBtn.click(function() {	
		// Get all inputs
		var inputs = $('#' + newTabId + ' input');
		
		// Go through each input
		var args = '';
		var attrName, attrVal;
		inputs.each(function(){
			// If the border color is blue
			if ($(this).css('border-left-color') == 'rgb(0, 0, 255)') {
				// Change border color back to normal
				$(this).css('border-color', '');
				
				// Get attribute name and value
    			attrName = $(this).parent().find('label').text().replace(':', '');
    			attrVal = $(this).val();
    			
    			// Build argument string
    			if (args) {
    				// Handle subsequent arguments
    				args += ';' + attrName + '=' + attrVal;
    			} else {
    				// Handle the 1st argument
    				args += attrName + '=' + attrVal;
    			}
    		}
		});
		
		// Send command to change node attributes
    	$.ajax( {
    		url : 'lib/cmd.php',
    		dataType : 'json',
    		data : {
    			cmd : 'chdef',
    			tgt : '',
    			args : '-t;node;-o;' + tgtNode + ';' + args,
    			msg : 'out=' + newTabId + ';tgt=' + tgtNode
    		},

    		success: showChdefOutput
    	});
	});
	editPropsForm.append(saveBtn);
	
	/**
	 * Cancel
	 */
	var cancelBtn = createButton('Cancel');
	cancelBtn.click(function() {
		// Close the tab
		tab.remove($(this).parent().parent().attr('id'));
	});
	editPropsForm.append(cancelBtn);

	// Append to discover tab
	tab.add(newTabId, 'Edit', editPropsForm, true);

	// Select new tab
	tab.select(newTabId);
}

/**
 * Open set node attributes dialog
 * 
 * @return Nothing
 */
function openSetAttrsDialog() {
	// Open new tab
	// Create set properties form
	var setPropsForm = $('<div class="form"></div>');

	// Create info bar
	var infoBar = createInfoBar('Choose the properties you wish to change on the node. When you are finished, click Save.');
	setPropsForm.append(infoBar);
	
	// Create an input for each definable attribute
	var div, label, input, descr, value;
	for (var key in nodeAttrs) {
		value = '';
		
		// Create label and input for attribute
		div = $('<div></div>').css('display', 'inline');
		label = $('<label>' + key + ':</label>').css('vertical-align', 'middle');
		input = $('<input type="text" value="' + value + '" title="' + nodeAttrs[key] + '"/>').css('margin-top', '5px');
		
		// Change border to blue onchange
		input.bind('change', function(event) {
			$(this).css('border-color', 'blue');
		});
		
		div.append(label);
		div.append(input);
		setPropsForm.append(div);
	}
	
	// Change style for last division
	div.css({
		'display': 'block',
		'margin': '0px 0px 10px 0px'
	});
	
	// Generate tooltips
	setPropsForm.find('div input[title]').tooltip({
		position: "center right",
		offset: [-2, 10],
		effect: "fade",
		opacity: 0.8,
		delay: 0,
		predelay: 800,
		events: {
			  def:     "mouseover,mouseout",
			  input:   "mouseover,mouseout",
			  widget:  "focus mouseover,blur mouseout",
			  tooltip: "mouseover,mouseout"
		},

		// Change z index to show tooltip in front
		onBeforeShow: function() {
			this.getTip().css('z-index', $.topZIndex());
		}
	});
	
	// Enable vertical scroll
	setPropsForm.css('overflow', 'auto');
		
	// Open form as a dialog
	setPropsForm.dialog({
		modal: true,
		height: 400,
		width: 700,
		buttons: {
        	"Save": function() {
        		// Remove any warning messages
        		$(this).find('.ui-state-error').remove();
        		
        		// Get all inputs
        		var inputs = $(this).find('input');
        		
        		// Go through each input
        		var args = '';
        		var tgtNode, attrName, attrVal;
        		inputs.each(function(){
        			// If the border color is blue
        			if ($(this).css('border-left-color') == 'rgb(0, 0, 255)') {
        				// Change border color back to normal
        				$(this).css('border-color', '');
        				
        				// Get attribute name and value
            			attrName = $(this).parent().find('label').text().replace(':', '');
            			attrVal = $(this).val();
            			
            			// Get node name
            			if (attrName == 'node') {
            				tgtNode = attrVal;
            			} else {
                			// Build argument string
                			if (args) {
                				// Handle subsequent arguments
                				args += ';' + attrName + '=' + attrVal;
                			} else {
                				// Handle the 1st argument
                				args += attrName + '=' + attrVal;
                			}
            			}
            		}
        		});
        		
        		// Send command to change node attributes
            	$.ajax( {
            		url : 'lib/cmd.php',
            		dataType : 'json',
            		data : {
            			cmd : 'chdef',
            			tgt : '',
            			args : '-t;node;-o;' + tgtNode + ';' + args,
            			msg : 'node=' + tgtNode
            		},

            		/**
					 * Show results
					 * 
					 * @param data
					 *            Data returned from HTTP request
					 * @return Nothing
					 */
            		success: function(data) {
            			// Get output
            			var out = data.rsp;
            			var node = data.msg.replace('node=', '');
            			
            			// Go through output and append to paragraph
            			var msg = '';
            			for (var i in out) {
            				if (!msg) {
            					msg = node + ': ' + out[i];
            				} else {
            					msg += '<br>' + node + ': ' + out[i];
            				}
            			}
            			
            			openDialog('info', msg);
            		}
            	});
            	
            	// Close dialog
            	$(this).dialog( "close" );
        	},
        	"Cancel": function(){
        		$(this).dialog( "close" );
        	}
		}
	});
}

/**
 * Turn on monitoring for a given node
 * 
 * @param node
 *            Node to monitor on or off
 * @param monitor
 *            Monitor state, on or off
 * @return Nothing
 */
function monitorNode(node, monitor) {
	if (monitor == 'on') {
		// Append loader to warning bar
		var gangliaLoader = createLoader('');
		var warningBar = $('#nodesTab').find('.ui-state-error p');
		if (warningBar.length) {
			warningBar.append(gangliaLoader);
		}

		if (node) {
			// Check if ganglia RPMs are installed
			$.ajax( {
				url : 'lib/cmd.php',
				dataType : 'json',
				data : {
					cmd : 'webrun',
					tgt : '',
					args : 'gangliacheck;' + node,
					msg : node	// Node range will be passed along in data.msg
				},

				/**
				 * Start ganglia on a given node range
				 * 
				 * @param data
				 *            Data returned from HTTP request
				 * @return Nothing
				 */
				success : function(data) {
					// Get response
					var out = data.rsp[0].split(/\n/);

					// Go through each line
					var warn = false;
					var warningMsg = '';
					for (var i in out) {
						// If an RPM is not installed
						if (out[i].indexOf('not installed') > -1) {
							warn = true;
							
							if (warningMsg) {
								warningMsg += '<br>' + out[i];
							} else {
								warningMsg = out[i];
							}
						}
					}
					
					// If there are warnings
					if (warn) {
						// Create warning bar
						var warningBar = createWarnBar(warningMsg);
						warningBar.css('margin-bottom', '10px');
						warningBar.prependTo($('#nodesTab'));
					} else {
						$.ajax( {
							url : 'lib/cmd.php',
							dataType : 'json',
							data : {
								cmd : 'webrun',
								tgt : '',
								args : 'gangliastart;' + data.msg,
								msg : ''
							},

							success : function(data) {
								// Remove any warnings
								$('#nodesTab').find('.ui-state-error').remove();
							}
						});
					} // End of if (warn)
				} // End of function(data)
			});
		} else {
			$.ajax( {
				url : 'lib/cmd.php',
				dataType : 'json',
				data : {
					cmd : 'webrun',
					tgt : '',
					args : 'gangliastart',
					msg : ''
				},

				success : function(data) {
					// Remove any warnings
					$('#nodesTab').find('.ui-state-error').remove();
				}
			});
		} // End of if (node)
	} else {
		var args;
		if (node) {
			args = 'gangliastop;' + node;
		} else {
			args = 'gangliastop';
		}

		$.ajax( {
			url : 'lib/cmd.php',
			dataType : 'json',
			data : {
				cmd : 'webrun',
				tgt : '',
				args : args,
				msg : ''
			},

			success : function(data) {
				// Do nothing
			}
		});
	}
}

/**
 * Install Ganglia on a given node
 * 
 * @param node
 *            Node to install Ganglia on
 * @return Nothing
 */
function installGanglia(node) {
	var iframe = createIFrame('lib/cmd.php?cmd=webrun&tgt=&args=installganglia;' + node + '&msg=' + node + '&opts=flush');
	iframe.prependTo($('#nodesTab'));
	
	// Turn on Ganglia for node
	monitorNode(node, 'on');
}