// Correctly handle PNG transparency in Win IE 5.5 or higher.
// http://homepage.ntlworld.com/bobosola. Updated 31-May-2004

// *************************************************
// This extended version includes imagemap
// and input image functionality.
// It also requires a 1px transparent GIF
// *************************************************

var strGif = "/pics/dot.gif"
var strFilter = "progid:DXImageTransform.Microsoft.AlphaImageLoader"

function correctPNG()
{
   for(var i=0; i<document.images.length; i++)
   {
    var img = document.images[i]
    var imgName = img.src.toUpperCase()
    if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
    {
     var imgID = (img.id) ? "id='" + img.id + "' " : ""
     var imgClass = (img.className) ? "class='" + img.className + "' " : ""
     var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
     var imgStyle = "display:inline-block;" + img.style.cssText
     if (img.align == "left") imgStyle = "float:left;" + imgStyle
     if (img.align == "right") imgStyle = "float:right;" + imgStyle
     if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle
         if (img.useMap)
     {
           strAddMap = "<img style=\"position:relative; left:-" + img.width + "px;"
           + "height:" + img.height + "px;width:" + img.width +"\" "
       + "src=\"" + strGif + "\" usemap=\"" + img.useMap
       + "\" border=\"" + img.border + "\">"
     }
     var strNewHTML = "<span " + imgID + imgClass + imgTitle
     + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
       + "filter:" + strFilter
     + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>"
     if (img.useMap) strNewHTML += strAddMap
     img.outerHTML = strNewHTML
     i = i-1
    }
   }
   for(i=0; i < document.forms.length; i++)
   {
      findImgInputs(document.forms(i))
   }
}

function findImgInputs(oParent)
{
  var oChildren = oParent.children
    if (oChildren)
  {
    for (var i=0; i < oChildren.length; i++ )
    {
       var oChild = oChildren(i)
           if ((oChild.type == 'image') && (oChild.src))
       {
           var origSrc = oChild.src
           oChild.src = strGif
           oChild.style.filter = strFilter + "(src='" + origSrc + "')"
       }
       findImgInputs(oChild)
      }
  }
}
window.attachEvent("onload", correctPNG);