var home_on = "home_mo.gif"
	var products_on = "products_mo.gif"
	var purchase_on = "purchase_mo.gif"
	var support_on = "support_mo.gif"
	var security_on = "security_mo.gif"
	var privacy_on = "privacy_mo.gif"
	var resources_on = "resources_mo.gif"
	var faq_on = "faq_mo.gif"
	var home_off = "home_off.gif"
	var products_off = "products_off.gif"
	var purchase_off = "purchase_off.gif"
	var support_off = "support_off.gif"
	var security_off = "security_off.gif"
	var privacy_off = "privacy_off.gif"
	var resources_off = "resources_off.gif"
	var faq_off = "faq_off.gif"
   function activate(imgName) {
      document.images[imgName].src = eval(imgName + "_on");
   }

   function deactivate(imgName) {
      document.images[imgName].src = eval(imgName + "_off");
   }