var link_path  = "/wk/";

J11=true;

var swapIm = new Array();
var old = "";
var oldSrc = "";

var Im= new Array (
/*0*/ link_path+"images/menu-about-hover.jpg",
/*1*/ link_path+"images/menu-products-hover.jpg",
/*2*/ link_path+"images/menu-case-studies-hover.jpg",
/*3*/ link_path+"images/menu-contact-hover.jpg"
)

if(J11) {
	for(i in Im) {
		swapIm[i] = new Image();
		swapIm[i].src = Im[i];
		}
	}

function swap(n,index) {
	if(J11) {
		n = arguments[0].toString();
		index = parseInt(arguments[1]);
		eval("oldSrc = document." + n + ".src");
		old = n;
		eval("document." + n + " .src=swapIm[" + index + "].src");
		}
	}

function back() {
	if(J11) {
		eval("document." + old + ".src=oldSrc");
		}
	}