function preLoad(imgObj,imgSrc){
	eval(imgObj+'=new Image()');
	eval(imgObj+'.src="'+imgSrc+'"');
}

function swapImg(Name,Src){
	document.images[Name].src=Src.src;
}

nav_img = new Array;
nav_img[0] = "companyprofile";
nav_img[1] = "whatsnew";
nav_img[2] = "products";
nav_img[3] = "contactus";
nav_img[4] = "terms";

for(var i = 0; i < nav_img.length; i++){
	preLoad(nav_img[i],'/images/interface/nav/' + nav_img[i] + '.gif');
	preLoad(nav_img[i] + '_s','/images/interface/nav/' + nav_img[i] + '_s.gif');
}