51 lines
1.1 KiB
Plaintext
51 lines
1.1 KiB
Plaintext
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<public:component>
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<public:attach event="onpropertychange" onevent="propertyChanged()" />
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<script>
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var supported = /MSIE (5\.5)|[6789]/.test(navigator.userAgent) && navigator.platform == "Win32";
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var realSrc;
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var blankSrc = "blank.gif";
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if (supported) fixImage();
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function propertyChanged() {
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if (!supported) return;
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var pName = event.propertyName;
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if (pName != "src") return;
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// if not set to blank
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if ( ! new RegExp(blankSrc).test(src))
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fixImage();
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};
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function fixImage() {
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// get src
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var src = element.src;
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// check for real change
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if (src == realSrc) {
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element.src = blankSrc;
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return;
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}
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if ( ! new RegExp(blankSrc).test(src)) {
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// backup old src
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realSrc = src;
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}
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// test for png
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if ( /\.png$/.test( realSrc.toLowerCase() ) ) {
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// set blank image
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element.src = blankSrc;
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// set filter
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element.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" +
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src + "',sizingMethod='scale')";
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}
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else {
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// remove filter
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element.runtimeStyle.filter = "";
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}
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}
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</script>
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</public:component>
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