var home_off = new Image();
var home_on = new Image();
var about_off = new Image();
var about_on = new Image();
var careers_off = new Image();
var careers_on = new Image();
var employers_off = new Image();
var employers_on = new Image();
var faqs_off = new Image();
var faqs_on = new Image();
var contact_off = new Image();
var contact_on = new Image();

home_off.src = "/_images/nav_home_off.gif";
home_on.src = "/_images/nav_home_on.gif";
about_off.src = "/_images/nav_about_off.gif";
about_on.src = "/_images/nav_about_on.gif";
careers_off.src = "/_images/nav_careers_off.gif";
careers_on.src = "/_images/nav_careers_on.gif";
employers_off.src = "/_images/nav_employers_off.gif";
employers_on.src = "/_images/nav_employers_on.gif";
faqs_off.src = "/_images/nav_faqs_off.gif";
faqs_on.src = "/_images/nav_faqs_on.gif";
contact_off.src = "/_images/nav_contact_off.gif";
contact_on.src = "/_images/nav_contact_on.gif";

function imgact(imgName) 
{
  if(document.images) document.getElementById(imgName).src = eval(imgName + "_on.src");
}

function imginact(imgName) 
{
  if(document.images) document.getElementById(imgName).src = eval(imgName + "_off.src");
}