//popup window functions
	var popUpWin;
	function closePopUpWin() {
		if(top.popUpWin != null && !top.popUpWin.closed){
			top.popUpWin.close();		
		}
	}
	
	function openPopUpWin(aUrl,w,h,windowtype){
		closePopUpWin();
		if(windowtype == 1){
			params = "toolbar=yes,location=yes,directories=no,status=no,menubar=yes," + "scrollbars=yes,resizable=yes,width=" + w + ",height=" + h + ",left=0,top=30,screenX=0,screenY=30";
		} else if(windowtype == 2){
			params = "toolbar=no,location=no,directories=no,status=no,menubar=no," + "scrollbars=no,resizable=yes,width=" + w + ",height=" + h + ",left=0,top=30,screenX=0,screenY=30";
		} else {
			params = "toolbar=no,location=no,directories=no,status=no,menubar=no," + "scrollbars=yes,resizable=yes,width=" + w + ",height=" + h + ",left=0,top=30,screenX=0,screenY=30";
		}
		popUpWin = open(aUrl, "popwindow", params);
	}