//Preload images to appear in navigation rollover
var myimages=new Array()
function preloadimages(){
for (i=0;i<preloadimages.arguments.length;i++){
myimages[i]=new Image()
myimages[i].src=preloadimages.arguments[i]
}
}

preloadimages("/images/nav_ralph3_on.jpg",
              "/images/nav_ralph3_off.jpg",
              "/images/nav_pat_on.jpg",
              "/images/nav_pat_off.jpg")
							
function highlightMenu(menuName,onORoff) {
 var whatToDo = eval("document.images."+menuName);
 whatToDo.src = "/images/"+menuName+(onORoff?"_on":"_off")+".jpg";
}