// Place your application-specific JavaScript functions and classes here
// This file is automatically included by javascript_include_tag :defaults
function show_menu() {
    $('shops_list').style.left = Position.positionedOffset($('nav_shop'))[0];
    $('shops_list').style.top = Position.positionedOffset($('nav_shop'))[1] + $('nav_shop').offsetHeight;
    $('shops_list').style.zIndex = 10;
    $('shops_list').style.visibility = 'visible';   
}