function OpenWindow(url, yy, xx) {
var vy = yy; vx = xx + 10; sxy ="";

if (yy == 1) { 
  if (window.screen) { vy = screen.availHeight - 100; vx = screen.availWidth - 40; } else { vy = 600; vx = 900; } 
  sxy = "height=" + vy + ",width=" + vx + ",";  

} else if ((yy > 0) || (xx > 0)) { 
         if ((yy > 0) && (xx == 0)) { sxy = "height=" + vy + ","; }
         else if ((yy == 0) && (xx > 0)) { sxy = "width=" + vx + ","; } else sxy = "height=" + vy + ",width=" + vx + ",";
        
       }

window.open(url, "", sxy + "screenx=0,screeny=0,left=0,top=0,channelmode=0,dependent=0,directories=0,fullscreen=0,resizable=1,scrollbars=1,location=0,menubar=0,status=0,toolbar=0");
}