var MainID = -1;
var host = document.location.host;
var page = document.location.href.substring(document.location.href.indexOf(host)+host.length);
page = page.toLowerCase();
var str = "";
if (page.length > 5) str = page.substring(1,6);

var Cat = new Array();
Cat.push({img: "/images/headers/others.jpg", url: "/courses.htm"});
Cat.push({img: "/images/headers/about.jpg", url: "/courses.htm"});
Cat.push({img: "/images/headers/courses.jpg", url: "/courses.htm"});
Cat.push({img: "/images/headers/information.jpg", url: "/courses.htm"});
Cat.push({img: "/images/headers/partnerships.jpg", url: "/courses.htm"});
Cat.push({img: "/images/headers/students.jpg", url: "/courses.htm"});
Cat.push({img: "/images/headers/others.jpg", url: "/courses.htm"});
Cat.push({img: "/images/headers/timetable.jpg", url: "/courses.htm"});
Cat.push({img: "/images/headers/enrol.jpg", url: "/courses.htm"});
Cat.push({img: "/images/headers/contact.jpg", url: "/courses.htm"});

function getMenuId(menuid) {
	return "cat_" + menuid;
}

function hardSetSelectedItem(menuid,pageurl) {
	menuid = getMenuId(menuid);
	pageurl = pageurl.toLowerCase();
	
	if (pageurl == page) return;
	
	var ie = 0;
	var detect = navigator.userAgent.toLowerCase();	
	if (detect.indexOf('msie') > 0) ie = 1;
	
	var menus = document.getElementById(menuid);
	if (menus == null) return;
	
	var tds = menus.getElementsByTagName("td");
	
	if (!setSelected(tds, pageurl, ie)) {
		// iterate through all sub-menus
		var masterdiv = document.getElementById(menuid+"_divs");
		// old menus don't have this
		if (masterdiv) {
			var divs = masterdiv.getElementsByTagName("div");
			for (var i = 0; i < divs.length; i++) {
				tds = divs[i].getElementsByTagName("td");
				if (setSelected(tds, pageurl, ie))
					break;
			}
		}
	}
}

function getMenuItem(menuid) {
	menuid = getMenuId(menuid);
	var menus = document.getElementById(menuid);
	if (menus == null) return;
	var tds = menus.getElementsByTagName("td");
	for (var i = 0; i < tds.length; i++) {
		var mouseover = tds[i].onmouseover;
		if (mouseover == null) return i;
	}
	return -1;
}

/*function getMenu(menuid) {
	menuid = getMenuId(menuid);
	var menus = document.getElementById(menuid);
	if (menus == null) return false;
	var tds = menus.getElementsByTagName("td");
	for (var i = 0; i < tds.length; i++) {
		if (tds[i].getAttribute("onclick") != null)	{
			itemurl = tds[i].getAttribute("onclick").toString();
			pos = itemurl.indexOf("=");		
			if (pos != -1) {
				pos2 = itemurl.indexOf(';');		
				itemurl = itemurl.substring(pos+2,pos2-1);					
					
				if (itemurl.toLowerCase() == page.toLowerCase()) return true;
			}
		}
	}
	return false;
}*/

function getMainID(){
	if (str == "about") {
		document.getElementById("sub1").style.display="inline"; //left menu
		hardSetSelectedItem("124201","/about.htm"); //top menu
		//hardSetSelectedItem("124350","/about.htm"); //bottom menu
		MainID=0;
		return;
	}
	if (str == "cours") {
		document.getElementById("sub2").style.display="inline"; //left menu
		hardSetSelectedItem("124201","/courses.htm"); //top menu
		//hardSetSelectedItem("124350","/courses.htm"); //bottom menu
		MainID=1;
		return;
	}
	if (str == "partn") {
		document.getElementById("sub3").style.display="inline"; //left menu
		hardSetSelectedItem("124201","/partnerships.htm"); //top menu
		//hardSetSelectedItem("124350","/partnerships.htm"); //bottom menu
		MainID=3;
		return;
	}
	if (str == "stude") {
		document.getElementById("sub4").style.display="inline"; //left menu
		hardSetSelectedItem("124201","/student_info.htm"); //top menu
		//hardSetSelectedItem("124350","/student_info.htm"); //bottom menu
		MainID=2;
		return;
	}
	if (str == "enrol") {
		document.getElementById("sub5").style.display="inline"; //left menu
		hardSetSelectedItem("124201","/enrol.htm"); //top menu
		//hardSetSelectedItem("124350","/student_info.htm"); //bottom menu
		MainID=7;
		return;
	}
	MainID=getMenuItem("124201");
}

function getMain() {
	getMainID();
	if (MainID >= -1 && MainID <= 8) {
		if (MainID > -1) document.getElementById("arrow"+MainID).style.display="inline";
		document.getElementById("img").src=Cat[MainID+1]["img"];
		document.getElementById("url").href=Cat[MainID+1]["url"];
	}
}

function changeBottom() {
	if (str == "about") {
		hardSetSelectedItem("124350","/about.htm"); //bottom menu
		return;
	}
	if (str == "cours") {
		hardSetSelectedItem("124350","/courses.htm"); //bottom menu
		return;
	}
	if (str == "partn") {
		hardSetSelectedItem("124350","/partnerships.htm"); //bottom menu
		return;
	}
	if (str == "stude") {
		hardSetSelectedItem("124350","/student_info.htm"); //bottom menu
		return;
	}
	if (str == "enrol") {
		hardSetSelectedItem("124350","/enrol.htm"); //bottom menu
		return;
	}
}