if (document.images) {	
		
   	shop_on= new Image();				shop_on.src="images/navigation/shop2.gif";  
   	shop_off= new Image();				shop_off.src="images/navigation/shop1.gif";  
	
   	workbook_on= new Image();			workbook_on.src="images/navigation/workbook2.gif";  
   	workbook_off= new Image();			workbook_off.src="images/navigation/workbook1.gif";  
	
   	tots_on= new Image();				tots_on.src="images/navigation/tots2.gif";  
   	tots_off= new Image();				tots_off.src="images/navigation/tots1.gif";  
	
   	monique_on= new Image();			monique_on.src="images/navigation/monique2.gif";  
   	monique_off= new Image();			monique_off.src="images/navigation/monique1.gif";  
	
   	contact_on= new Image();			contact_on.src="images/navigation/contact2.gif";  
   	contact_off= new Image();			contact_off.src="images/navigation/contact1.gif";  
		
}