if (document.images) {	

   	submenu1_on = new Image();				submenu1_on.src="images/sub_gifs/submenu1b.gif";  
	submenu1_off = new Image(); 			submenu1_off.src="images/sub_gifs/submenu1a.gif";  		
	
   	submenu2_on = new Image();				submenu2_on.src="images/sub_gifs/submenu2b.gif";  
	submenu2_off = new Image(); 			submenu2_off.src="images/sub_gifs/submenu2a.gif";  		
	
	submenu3_on = new Image();				submenu3_on.src="images/sub_gifs/submenu3b.gif";  
	submenu3_off = new Image(); 			submenu3_off.src="images/sub_gifs/submenu3a.gif";  		
	
	submenu4_on = new Image();				submenu4_on.src="images/sub_gifs/submenu4b.gif";  
	submenu4_off = new Image(); 			submenu4_off.src="images/sub_gifs/submenu4a.gif";  		
	
	submenu5_on = new Image();				submenu5_on.src="images/sub_gifs/submenu5b.gif";  
	submenu5_off = new Image(); 			submenu5_off.src="images/sub_gifs/submenu5a.gif";  		
	
	submenu6_on = new Image();				submenu6_on.src="images/sub_gifs/submenu6b.gif";  
	submenu6_off = new Image(); 			submenu6_off.src="images/sub_gifs/submenu6a.gif";  		
	
	submenu7_on = new Image();				submenu7_on.src="images/sub_gifs/submenu7b.gif";  
	submenu7_off = new Image(); 			submenu7_off.src="images/sub_gifs/submenu7a.gif";  		
		
   }