function preload(imgObj,imgSrc) {
        if (document.images) {
                eval(imgObj+' = new Image()')
                eval(imgObj+'.src = "'+imgSrc+'"')
        }
}

function changeImage(imgName,imgObj) {
        if(hot!=imgName){
          if (document.images) {
                if (document.layers) eval('document.images["'+imgName+'"].src = '+imgObj+'.src')
                else document.images[imgName].src = eval(imgObj+".src")
          }
        }
}

function loadFrame(name,source){
  eval("parent."+name+".location.href" +"=source;");
}