function disp(url){ 
var w = screen.availWidth;
var h = screen.availHeight-30;
//alert(w + " , " + h);
var win = window.open(url, "window_name", "width=" + w +",height=" + h +",scrollbars=no,resizable=no,menubar=no,toolbar=no,location=no,directories=no,status=no"); 
}