var Win;
function displayWindowno(url, width, height) {
if (Win!=null) {
   Win.close();
   }
  Win = window.open(url,"displayWindow",'width=' + width + ',height=' + height + ',resizable=no,scrollbars=no,menubar=no' );
}

function displayWindowyes(url, width, height) {
if (Win!=null) {
   Win.close();
   }
  Win = window.open(url,"displayWindow",'width=' + width + ',height=' + height + ',resizable=no,scrollbars=yes,menubar=no' );
}