$(document).ready(function(){	
	$(window).bind('load', function(){
   var preload = [
     '../assets/images/header/tn_aboutus_on.gif',
     '../assets/images/header/tn_casestudies_on.gif',
     '../assets/images/header/tn_clients_on.gif',
	 '../assets/images/header/tn_solutions_on.gif',
	 '../assets/images/header/tn_contact_on.gif',
	 '../assets/images/header/tn_tech_on.gif'
   ];          
   $(document.createElement('img')).bind('load', function(){
    if(preload[0]) this.src = preload.shift();
   }).trigger('load');          

}); 

	$("#solutions").mouseover( function() {
		$(this).attr("src", "../assets/images/header/tn_solutions_on.gif");
	});
	$("#solutions").mouseout( function() {
		$(this).attr("src", "../assets/images/header/tn_solutions_off.gif");
	});
	
	$("#tech").mouseover( function() {
		$(this).attr("src", "../assets/images/header/tn_tech_on.gif");
	});
	$("#tech").mouseout( function() {
		$(this).attr("src", "../assets/images/header/tn_tech_off.gif");
	});
	
	$("#clients").mouseover( function() {
		$(this).attr("src", "../assets/images/header/tn_clients_on.gif");
	});
	$("#clients").mouseout( function() {
		$(this).attr("src", "../assets/images/header/tn_clients_off.gif");
	});
	
	$("#case").mouseover( function() {
		$(this).attr("src", "../assets/images/header/tn_casestudies_on.gif");
	});
	$("#case").mouseout( function() {
		$(this).attr("src", "../assets/images/header/tn_casestudies_off.gif");
	});
	
	$("#contact").mouseover(function() {
		$(this).attr("src", "../assets/images/header/tn_contact_on.gif");
	});
	$("#contact").mouseout(function() {
		$(this).attr("src", "../assets/images/header/tn_contact_off.gif");
	});
	
	$("#about").mouseover( function() {
		$(this).attr("src", "../assets/images/header/tn_aboutus_on.gif");
	});
	$("#about").mouseout( function() {
		$(this).attr("src", "../assets/images/header/tn_aboutus_off.gif");
	});
	
});