function correctPNG() // correctly handle PNG transparency in Win IE 5.5 & 6.
	{
	   var arVersion = navigator.appVersion.split("MSIE")
	   var version = parseFloat(arVersion[1])
	   if ((version >= 5.5) && (document.body.filters)) 
	   {
    	  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
    	        var strNewHTML = "<span " + imgID + imgClass + imgTitle
        	    + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
            	+ "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
	            + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" 
    	        img.outerHTML = strNewHTML
        	    i = i-1
	         }
	      }
	   }    
	}
	window.attachEvent("onload", correctPNG);
	
var prevDivName = "";	
function doCollapse (divName) 
{
	if (divName)
	{
		if (document.getElementById("d_"+divName).className == "invisible")
		{
			document.getElementById("d_"+divName).className = 'visible';
			//document.getElementById("m_"+divName).className = 'mainnav_click';			
			document["b_"+divName].src = relativePath+"images/arrow_down.gif";
		}
		else
		{
			document.getElementById("d_"+divName).className = 'invisible';
			//document.getElementById("m_"+divName).className = 'mainnav';						
			document["b_"+divName].src = relativePath+"images/arrow_left.gif";
		}
		
		if (prevDivName != divName && prevDivName)
		{
			document.getElementById("d_"+prevDivName).className = 'invisible';
			//document.getElementById("m_"+prevDivName).className = 'mainnav';						
			document["b_"+prevDivName].src = relativePath+"images/arrow_left.gif";
		}
		prevDivName = divName;		
	}
}