function show_hidden_menu(id)
{
	$('#'+id).toggle();	
}

var triggers = $("a.modul").overlay(
{  
    expose: { 
        color: '#333', 
        loadSpeed: 200, 
        opacity: 0.9 
    },  
    closeOnClick: false 
});

$("#prompt form").submit(function(e) { 
 
    // close the overlay 
    triggers.eq(1).overlay().close(); 
 
    // get user input 
    var input = $("input", this).val(); 
 
    // do something with the answer 
    triggers.eq(1).html(input); 
 
    // do not submit the form 
    return e.preventDefault(); 
});