function fixPNG(myImage) // correctly handle PNG transparency in Win IE 5.5 or higher.
		   {
		  	if (window.ie55up)
			 {
			 var imgID = (myImage.id) ? "id='" + myImage.id + "' " : ""
			 var imgClass = (myImage.className) ? "class='" + myImage.className + "' " : ""
			 var imgTitle = (myImage.title) ? "title='" + myImage.title + "' " : "title='" + myImage.alt + "' "
			 var imgStyle = "display:inline-block;" + myImage.style.cssText 
			 var strNewHTML = "<span " + imgID + imgClass + imgTitle
			 strNewHTML += " style=\"" + "width:" + myImage.width + "px; height:" + myImage.height + "px;" + imgStyle + ";"
			 strNewHTML += "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
			 strNewHTML += "(src=\'" + myImage.src + "\', sizingMethod='scale');\"></span>" 
			 myImage.outerHTML = strNewHTML
			 }
		   }		
		function popup(filename, breite, hoehe, titel, windowname, scrolls) {
			oh = hoehe;
			ow = breite;
			//ladescan();
			
			var ret = screencenter(breite, hoehe, scrolls);
			var breite = ret[0];
			var hoehe = ret[1];
			var l = ret[2];
			var t = ret[3];
			var scrolls = ret[4];
			
			if(filename.indexOf("?") == -1) kupplung = "?";
			else kupplung = "&";
			filename = filename + kupplung + "popuptitle=" + titel + "&w=" + ow + "&h=" + oh;
			newwindow = window.open(filename, windowname,"width="+breite+",height=" +hoehe+",screenX="+l+",screenY="+t+",left=" +l+",top="+t+",location=false,menubar=no,resizable=no,scrollbars="+scrolls+",status=no,toolbar=no");
			newwindow.focus();
			return false;
		}
		
		function screencenter(breite, hoehe, scrolls) {
			
			if (navigator.userAgent.indexOf("Opera") != -1) 
			{
				var t = (screen.availHeight - hoehe) / 2 - 100;
				var yabstand = 200;
			}
			else {
				var t = (screen.availHeight - hoehe) / 2;
				var yabstand = 50;
			}
			if(breite > screen.availWidth - 50) 
			{
				scrolls = "yes";
				breite = screen.availWidth - 50;
			}
			if(hoehe > screen.availHeight - yabstand) 
			{
				scrolls = "yes";
				hoehe = screen.availHeight - yabstand;
				breite = breite / 1 + 20;
				t = 10;
			}
			var l = (screen.availWidth - breite) / 2;
			
			return new Array(breite, hoehe, l, t, scrolls);
			
		}