public/windows_js_1.3/documentation/themes/iefix/iepngfix.htc

   1 <public:component>
   2 <public:attach event="onpropertychange" onevent="doFix()" />
   3
   4 <script type="text/javascript">
   5
   6 // IE5.5+ PNG Alpha Fix v1.0RC4
   7 // (c) 2004-2005 Angus Turnbull http://www.twinhelix.com
   8
   9 // This is licensed under the CC-GNU LGPL, version 2.1 or later.
  10 // For details, see: http://creativecommons.org/licenses/LGPL/2.1/
  11
  12 // Modified/Simplified on 04/23/2007 by Sebastien Gruhier (http://www.xilinus.com)
  13 // To work only on background and to handle repeat bg
  14
  15 // This must be a path to a blank image. That's all the configuration you need.
  16 if (typeof blankImg == 'undefined') var blankImg = 'blank.gif';
  17
  18 var f = 'DXImageTransform.Microsoft.AlphaImageLoader';
  19
  20 function filt(s, m)
  21 {
  22  if (filters[f])
  23  {
  24   filters[f].enabled = s ? true : false;
  25   if (s) with (filters[f]) { src = s; sizingMethod = m }
  26  }
  27  else if (s) style.filter = 'progid:'+f+'(src="'+s+'",sizingMethod="'+m+'")';
  28 }
  29
  30 function doFix()
  31 {
  32  // Assume IE7 is OK.
  33  if (!/MSIE (5\.5|6\.)/.test(navigator.userAgent) ||
  34   (event && !/(background|src)/.test(event.propertyName))) return;
  35
  36  var bgImg = currentStyle.backgroundImage || style.backgroundImage;
  37  var bgRepeat = currentStyle.backgroundRepeat || style.backgroundRepeat;
  38  if (bgImg && bgImg != 'none')
  39  {
  40   if (bgImg.match(/^url[("']+(.*\.png)[)"']+$/i))
  41   {
  42    var s = RegExp.$1;
  43    if (currentStyle.width == 'auto' && currentStyle.height == 'auto')
  44     style.width = offsetWidth + 'px';
  45    style.backgroundImage = 'none';
  46    filt(s, bgRepeat == "no-repeat" ? 'crop' : 'scale');
  47   }
  48  }
  49 }
  50
  51 doFix();
  52
  53 </script>
  54 </public:component>