/*

Correctly handle PNG transparency in Win IE 5.5 and 6.
http://homepage.ntlworld.com/bobosola. Updated 18-Jan-2005.

Use in <HEAD> section with DEFER keyword
wrapped in conditional comments thus: 

    <!--[if lt IE 7]>
    <script defer type="text/javascript" src="pngfix.js"></script>
    <![endif]-->

This extended version includes imagemap and input image functionality.
It also requires a 1px transparent GIF.
 
*/

var strGif = "img/x.gif"
var strFilter = "progid:DXImageTransform.Microsoft.AlphaImageLoader"
var arVersion = navigator.appVersion.split("MSIE")
var version = parseFloat(arVersion[1])

function fixPNG()
{

if ((version >= 5.5) && (document.body.filters)) 
{
	for(var i=0; i<document.images.length; i++)
	{
	   var img = document.images[i]
	   if(img.getAttribute("fixado") != "1")
	   {
		   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 + "\');\" fixado=\"1\"></span>" 
			  if (img.useMap) strNewHTML += strAddMap
			  img.outerHTML = strNewHTML
			  i = i-1
		   }
	   }
	}

   //for(i=0; i < document.forms.length; i++) findImgInputs(document.forms(i))
   findImgInputs();
}
}

function findImgInputs()
{
   var oChildren = document.getElementsByTagName("input")
   if (oChildren)
   {
      for (var i=0; i < oChildren.length; i++ )
      {	
         var oChild = oChildren(i)
         if ((oChild.type.toLowerCase() == 'image') && (oChild.src))
         {
			if(oChild.getAttribute("fixado") != "1")
			{
				 var origSrc = oChild.src
				 oChild.src = strGif
				 oChild.style.filter = strFilter + "(src='" + origSrc + "')"
				 oChild.setAttribute("fixado", "1");
			}
         }
      }
   }
}

