var str="/images/";
var nameImage=new Array('nav_home','nav_aboutus','nav_searchhomes','nav_findagent','nav_discoverneighbor');

if (document.images) {
var offImage=new Array();
var onImage=new Array();
for (i=0;i<5;i++){
	offImage[i]=new Image();
	offImage[i].src=str+nameImage[i]+".gif";
	onImage[i]=new Image();
	onImage[i].src=str+nameImage[i]+"-over.gif";
	}
}
	
// image swapping
function over(name,file) {
		if (document.images) obj=eval(document.images[name]);
		if (obj) obj.src=onImage[file].src;
}
	
function out(name,file) {
		if (document.images) obj=eval(document.images[name]);
		if (obj) obj.src=offImage[file].src;
}