function browser(){
	this.dom = (document.getElementById) ? true : false;
	this.ns4 = (document.layers) ? true : false;
	this.ie = (document.all && !window.opera) ? true : false;
	this.ns6 = this.dom && !this.ie
	this.ie4 = this.ie && !this.dom;
	this.opera = (navigator.userAgent.indexOf("Opera") != -1);
	this.mac = (navigator.appVersion.indexOf("Mac") != -1);
	this.macie4 = this.ie4 || this.mac;
	this.dhtml = (this.dom || this.ns4 || this.ie || this.ie4 || this.opera || !this.mac) ? true : false;
	this.dhtml = (this.mac)?false:true;
	this.ie7 = (document.all && !window.opera && window.XMLHttpRequest) ? true : false;
	return this;
}

var bw = new browser();

over = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("li");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			if(bw.ie && !bw.ie7){
				sel = document.getElementsByTagName("select");
				for (var i=0; i<sel.length; i++) {
					sel[i].style.visibility = 'hidden';
				}
			}
			this.className+=" over";
		}

		sfEls[i].onmouseout=function() {
			if(bw.ie && !bw.ie7){
				sel = document.getElementsByTagName("select");
				for (var i=0; i<sel.length; i++) {
					sel[i].style.visibility = 'visible';
				}
			}
			this.className=this.className.replace(new RegExp(" over\\b"), "");
		}
	}
}

//if (window.attachEvent && document.getElementById("quicknv")){ window.attachEvent("onload", over);}
if (window.attachEvent){ window.attachEvent("onload", over);}


function roll_over(current_name,new_state) {
	if (document.images) {
    	document[current_name].src = new_state;
    };
};

function toggleTable(el,st) {
	var myelement = document.getElementById(el);
	
	if(st == 1){
		if(bw.ie){
			myelement.style.display = "inline"
		}else{
			myelement.style.display = "table-cell"
		}
	}else{
		myelement.style.display = "none"	
	}	
}

function toggleDiv(el,st) {
	var myelement = document.getElementById(el);
	if(st == 1){
		myelement.style.visibility = "visible";
	}else{
		myelement.style.visibility = "hidden";
	}	
}

function toggleImage(el,st) {
	var myelement = document.getElementById(el);
	if(st == 1){
		myelement.src = "/images/uct.ac.za/home/holidays/roshhashanah_banner_on.gif";
	}else{
		myelement.src = "/images/uct.ac.za/home/holidays/roshhashanah_banner.gif";
	}	
}

overQ = function() {

	var next_parent = "";
	var main_parent = "";

	if(document.getElementById("quicknv")){
		var sfEls = document.getElementById("quicknv").getElementsByTagName("li");
		for (var i=0; i<sfEls.length; i++) {

			sfEls[i].onmouseover=function() {

				if(bw.ie && !bw.ie7){
					sel = document.getElementsByTagName("select");
					for (var i=0; i<sel.length; i++) {
						sel[i].style.visibility = 'hidden';
					}
				}
				this.className+=" overQ";
			}

			sfEls[i].onmouseout=function() {
				if(bw.ie && !bw.ie7){
					sel = document.getElementsByTagName("select");
					for (var i=0; i<sel.length; i++) {
						sel[i].style.visibility = 'visible';
					}
				}
				this.className=this.className.replace(new RegExp(" overQ\\b"), "");
			}
		}
	}
}

function change_class(el_id,class_name){
	var element = document.getElementById(el_id);
	element.className = class_name;
}

//if (window.attachEvent && document.getElementById("quicknv")){ window.attachEvent("onload", overQ);}
if (window.attachEvent){ window.attachEvent("onload", overQ);}