function newImage(arg) {

 if (document.images) {

  rslt = new Image();

  rslt.src = arg;

  return rslt;

 }

}



function changeImages() {

 if (document.images && (preloadFlag == true)) {

  for (var i=0; i<changeImages.arguments.length; i+=2) {

   document[changeImages.arguments[i]].src = changeImages.arguments[i+1];

  }

 }

}



var preloadFlag = false;

function preloadImages() {

 if (document.images) {

  net08over = newImage("../nav/img/info_leer.gif");

  preloadFlag = true;

 }

}



preloadImages();