if (document.images) {		
		
   	home_on= new Image();				home_on.src="images/navigation/home2.gif";  
   	home_off= new Image();				home_off.src="images/navigation/home1.gif";  

   	adoption_on= new Image();			adoption_on.src="images/navigation/adoption2.gif";  
   	adoption_off= new Image();			adoption_off.src="images/navigation/adoption1.gif";  

   	surrogacy_on= new Image();			surrogacy_on.src="images/navigation/surrogacy2.gif";  
   	surrogacy_off= new Image();			surrogacy_off.src="images/navigation/surrogacy1.gif";  

   	egg_on= new Image();				egg_on.src="images/navigation/egg2.gif";  
   	egg_off= new Image();				egg_off.src="images/navigation/egg1.gif";  

   	sperm_on= new Image();				sperm_on.src="images/navigation/sperm2.gif";  
   	sperm_off= new Image();				sperm_off.src="images/navigation/sperm1.gif";  
												
   	embryo_on= new Image();				embryo_on.src="images/navigation/embryo2.gif";  
   	embryo_off= new Image();			embryo_off.src="images/navigation/embryo1.gif";  

   	about_on= new Image();				about_on.src="images/navigation/about2.gif";  
   	about_off= new Image();				about_off.src="images/navigation/about1.gif";  

   	contact_on= new Image();			contact_on.src="images/navigation/contact2.gif";  
   	contact_off= new Image();			contact_off.src="images/navigation/contact1.gif";  
}