function loadAgain() {
  if (document.getElementById) window.location.reload();
  if (document.layers) {
    if ((windowwidth != window.innerWidth) || (windowheight != window.innerHeight)) {
      window.location.reload();
    }
  }
}

if (document.layers){
   var windowwidth = window.innerWidth;
   var windowheight = window.innerHeight;
}

try {
    document.execCommand( "BackgroundImageCache", false, true );
} catch( e ) { };