var imgsx = new Array ();   // throw-away just to load images
function PreCache () {      // precache all unref'ed images
var i;
  if (!document.images) return;   // does browser support this?
  for (i=0; i<arguments.length; i++) {  // process all args
    imgsx[i] = new Image ();      // set up new image space
    imgsx[i].src = arguments[i];  // ref image to force load
  }
}