var basepath = "";
var imagepath =  "/portal/psd/";

var menu_off_delay = 125; // LENGTH IN MILLISECONDS BEFORE MENU SHUTS OFF
var divflag=0;
var DHTML_capable = (document.layers || document.all || document.getElementById) ? true : false;
// TOP LEVEL IMAGE PRELOAD
if(DHTML_capable){
	//var IMG_PATH = "images/nav/" // PATH TO IMAGES
	var IMG_PATH = imagepath + "" // PATH TO IMAGES

	// TOP-LEVEL IMAGES
	var OnlineIslem_off = new Image(); OnlineIslem_off.src = IMG_PATH + "onlineislem_off.gif";
	var OnlineIslem_on = new Image(); OnlineIslem_on.src = IMG_PATH + "onlineislem_on.gif";
	
	var Arastirma_off = new Image(); Arastirma_off.src = IMG_PATH + "arastirma_off.gif";
	var Arastirma_on = new Image(); Arastirma_on.src = IMG_PATH + "arastirma_on.gif";
	
	var Piyasalar_off = new Image(); Piyasalar_off.src = IMG_PATH + "piyasalar_off.gif";
	var Piyasalar_on = new Image(); Piyasalar_on.src = IMG_PATH + "piyasalar_on.gif";
	
	var BonoRepo_off = new Image(); BonoRepo_off.src = IMG_PATH + "bonorepo_off.gif";
	var BonoRepo_on = new Image(); BonoRepo_on.src = IMG_PATH + "bonorepo_on.gif";
	
	var Fon_off = new Image(); Fon_off.src = IMG_PATH + "Fon_off.gif";
	var Fon_on = new Image(); Fon_on.src = IMG_PATH + "Fon_on.gif";
	
	var Urunler_off = new Image(); Urunler_off.src = IMG_PATH + "Urunler_off.gif";
	var Urunler_on = new Image(); Urunler_on.src = IMG_PATH + "Urunler_on.gif";
	
	var Kap_off = new Image(); Kap_off.src = IMG_PATH + "Kap_off.gif";
	var Kap_on = new Image(); Kap_on.src = IMG_PATH + "Kap_on.gif";
	// SUBNAV IMAGES
	
	
}

// DHTML FUNCTIONS
function getObj(obj){
	if(document.layers)	return document.layers[obj];
	else if(document.all) return document.all[obj].style;
	else return document.getElementById(obj).style;
}
function getImage(obj){
	if(document.layers)	return document.layers["topnav"].document.images[obj];
	else return document.images[obj];
}

function show(what){getObj(what).visibility = "visible";}
function hide(what){getObj(what).visibility = "hidden";}
function roll_on(img){if(!document.images){return;}getImage(img).src = eval(img + "_on.src");}
function roll_off(img){if(!document.images){return;}getImage(img).src = eval(img + "_off.src");}

var last_menu = false;
var menu_is_on = false;
function menu_on(menu){
	if(!DHTML_capable) return false;
	if(last_menu && last_menu != menu){
		hide_menu(true);
	} 
	menu_is_on = true;
	show_menu(menu);
}
function menu_off(){ 
	if(!DHTML_capable) return false;
	if (!divflag) menu_is_on = false;
	//menu_is_on = false;
	setTimeout('hide_menu()',menu_off_delay);
}

function menu_off_tc(){ 
	if(!DHTML_capable) return false;
	menu_is_on = false;
	setTimeout('hide_menu()',0);
	//alert('tc_mouseout');
}

function show_menu(menu){
	if (!divflag && last_menu && last_menu != menu) { hide(last_menu + "-menu"); roll_off(last_menu); }
	last_menu = menu;
	show(menu + "-menu");
	//show("top_tc");
	//show("bot_tc");
	roll_on(menu);
	hide("default-subnav");
}
function hide_menu(reload){
	if(menu_is_on == true) return;
	if(!reload) show("default-subnav");
	hide(last_menu + "-menu");
	//hide("top_tc");
	//hide("bot_tc");
	roll_off(last_menu);
	menu_is_on = false;
}