// 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 = "/images/transparentpixel.gif"
var strFilter = "progid:DXImageTransform.Microsoft.AlphaImageLoader"

function correctPNG() 
{
   if ((is_ie)&&(is_win)&&(!is_ie7up)){
	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:0" + "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');\">"
			if (img.useMap) strNewHTML += strAddMap
			strNewHTML +="</span>" 
			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);