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<public:component>

<public:attach event="onpropertychange" onevent="propertyChanged()" />

<script>

var supported = /MSIE (5\.5)|[6789]/.test(navigator.userAgent) && navigator.platform == "Win32";

var realSrc;

var blankSrc = "img_pack/rien.gif";

if (supported) fixImage();

function propertyChanged() {

   if (!supported) return;

   var pName = event.propertyName;

   if (pName != "src") return;

   // if not set to blank

   if ( ! new RegExp(blankSrc).test(src))

      fixImage();

};

function fixImage() {

   // get src

   var src = element.src;

   // check for real change

   if (src == realSrc) {

      element.src = blankSrc;

      return;

   }

   if ( ! new RegExp(blankSrc).test(src)) {

      // backup old src

      realSrc = src;

   }

   // test for png

   if ( /\.png$/.test( realSrc.toLowerCase() ) ) {

      // set blank image

      element.src = blankSrc;

      // set filter

      element.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" +

                                     src + "',sizingMethod='scale')";

   }

}

</script>

</public:component>