if (document.images) {	

   	home_on= new Image();				home_on.src="../../../images/header_main/home2.gif";  
	home_off= new Image(); 				home_off.src="../../../images/header_main/home1.gif";

   	profile_on= new Image();			profile_on.src="../../../images/header_main/profile2.gif";  
	profile_off= new Image(); 			profile_off.src="../../../images/header_main/profile1.gif";

   	friends_on= new Image();			friends_on.src="../../../images/header_main/friends2.gif";  
	friends_off= new Image(); 			friends_off.src="../../../images/header_main/friends1.gif";

   	bars_on= new Image();				bars_on.src="../../../images/header_main/bars2.gif";  
	bars_off= new Image(); 				bars_off.src="../../../images/header_main/bars1.gif";

   	groups_on= new Image();				groups_on.src="../../../images/header_main/groups2.gif";  
	groups_off= new Image(); 			groups_off.src="../../../images/header_main/groups1.gif";

   	events_on= new Image();				events_on.src="../../../images/header_main/events2.gif";  
	events_off= new Image(); 			events_off.src="../../../images/header_main/events1.gif";

   	company_on= new Image();			company_on.src="../../../images/header_main/company2.gif";  
	company_off= new Image(); 			company_off.src="../../../images/header_main/company1.gif";


   }