// JavaScript Document

function on(im_l, im_l_o, menu_name, im_r, im_r_o){
	if (document.images) 
		{
		 document.images[im_l].src = "i/"+im_l_o+"_o.gif";
		 document.getElementById(menu_name).className = 'menu_o';
		 document.images[im_r].src = "i/"+im_r_o+"_o.gif";
		 }
		
}
function off(im_l, im_l_o, menu_name, im_r, im_r_o){
	if (document.images) 
		{
		 document.images[im_l].src = "i/"+im_l_o+".gif";
		 document.getElementById(menu_name).className = 'menu';
		 document.images[im_r].src = "i/"+im_r_o+".gif";
		 }
		
}