function addShortlist(str) {
	if (str=="") {
		document.getElementById("portfolio-des").innerHTML="";
		return;
	} 
	if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari
		xmlhttp=new XMLHttpRequest();
	} else {// code for IE6, IE5
		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
	xmlhttp.onreadystatechange=function() {
		if (xmlhttp.readyState==4 && xmlhttp.status==200) {
			document.getElementById("portfolio-des").innerHTML=xmlhttp.responseText;
		}
	}
	xmlhttp.open("GET","shortlist-new.pl?propID="+str,true);
	xmlhttp.send();
}