function popup(url,w,h) {
		screenWidth =  w;
		screenHeight = h;
    	dx = 50 ;dy = 50;
       var Win = window.open(url,"displayWindow",'width='+screenWidth+',height='+(screenHeight+5)+',resizable=0,scrollbars=no,menubar=no,left='+dx+',='+dy );
Win.focus();

}