var active_menu =0;            

var active_empty=0;  

var empty_over=0;  

var over_menu=0;    

var off_delay = 500; // in milliseconds

var menu_prefix = "map_region_";

                 



                 

function openMenu(menu_id){

	if (menu_id==0) return;

	if (active_menu !=0  && active_menu != menu_id){             

		OldDiv = document.getElementById(menu_prefix + active_menu);

		//imgOff("nav"+active_menu);

		OldDiv.style.display = "none";

		active_menu =0;

	}

	//imgOn("nav"+menu_id);            

	blockDiv = document.getElementById(menu_prefix + menu_id);

	if(blockDiv){

		blockDiv.style.display = "block";

		over_menu=menu_id;

		active_menu =menu_id;

	}

	//if (menu_id != active_empty && active_empty !=0)

		//imgOff("nav"+active_empty);

	active_empty=menu_id;           

	empty_over=menu_id;

	

	//mapImage

	document.getElementById("mapImage").src = "images/map" + menu_id + ".jpg";                

}

                 

function outMenu(menu_id){

	setTimeout("hideMenu("+menu_id+")",off_delay);

	over_menu =0;

	empty_over=0;

	

	//mapImage

	document.getElementById("mapImage").src = "images/map.jpg";

}

                 

function hideMenu(menu_id){

	blockDiv = document.getElementById(menu_prefix + menu_id);

	if(!blockDiv)// only empty menus

	{

		//if (menu_id != empty_over)            

			//imgOff("nav"+menu_id);

                 

	}           

	if ((active_menu ==menu_id) && (over_menu !=menu_id))            

	{            

		Div = document.getElementById(menu_prefix + menu_id);

		Div.style.display = "none";

		//imgOff("nav"+menu_id);

		active_menu=0;

	}

}