// menu top- parents - observer the mouseenter
Event.observe('menu_top_buyers', 'mouseenter', function(event) { make_active_popup('menu_buyers'); });
Event.observe('menu_top_sellers', 'mouseenter', function(event) { make_active_popup('menu_sellers'); });
Event.observe('menu_top_mls', 'mouseenter', function(event) { make_active_popup('menu_mlsSearch'); });

Event.observe('menu_buyers', 'mouseleave', function(event) { make_inactive_popup('menu_buyers'); });
Event.observe('menu_sellers', 'mouseleave', function(event) { make_inactive_popup('menu_sellers'); });
Event.observe('menu_mlsSearch', 'mouseleave', function(event) { make_inactive_popup('menu_mlsSearch'); });

Event.observe('menu_top_logo', 'mouseenter', function(event) { make_inactive_popup(); });


// globals 
var active_menu = '';

function make_active_popup(id)
	{

		if (active_menu === id) { return; }
		if ($(active_menu)) {  $(active_menu).hide(); }
		$(id).show();
		active_menu = id;
	}
	
function make_inactive_popup(id)
	{
		if ($(id)) { $(id).hide(); }
		if ($(active_menu)) {  $(active_menu).hide(); }
		active_menu = '';
	}