jQuery(function($){

    //When mouse rolls over  
	$("img.menu0").mouseenter(function(){  
        $("#submenu1").fadeIn("fast");
	});
    //When the other menu mouse rolls over  
	$("img.menu_img").mouseenter(function(){
       	$("#submenu1").fadeOut("fast");
	});
    //When sub-menu mouse out  
	$("#submenu1").mouseleave(function(){
       	$(this).fadeOut("fast");
	});
});