function openpopup(url, lwidth, lheight, lref)
    {
        alert("entrrez");
    		req="scrollbars=yes,width="+lwidth+",height="+lheight +",top=0, left=0,resizable=yes";
    		alert("window.open");
    		newwindow = window.open(url, lref, req);
    		alert("window.focus");
			//newwindow.focus();
    }