window.onload = function() {
	RuysAdvocaten.initMenu("menu");
}

var RuysAdvocaten = {
	// Collection of header images
	headerImages : ["headerimage_1.jpg",
					"headerimage_2.jpg",
					"headerimage_3.jpg",
					"headerimage_4.jpg",
					"headerimage_5.jpg",
					"headerimage_6.jpg"],

	// Change the header image
	setRandomHeader : function() {
		document.getElementById("headerimage").src = "img/" + this.headerImages[(Math.floor(Math.random() * this.headerImages.length))];
	},

	// Menu support for IE
	initMenu : function(elementId) {
		if (document.getElementById(elementId)) {
			for (var _i = 0; _i < document.getElementById(elementId).getElementsByTagName("LI").length; _i++) {
				var _menuItem = document.getElementById(elementId).getElementsByTagName("LI")[_i];
				if (_menuItem.getElementsByTagName("UL").length > 0) {
					_menuItem.onmouseover = function() {
						this.getElementsByTagName("UL")[0].style.display = "block";
					}
					_menuItem.onmouseout = function() {
						this.getElementsByTagName("UL")[0].style.display = "none";
					}
				}
			}
		}
		sfHover = function() {
		var sfEls = document.getElementById("nav").getElementsByTagName("LI");
		for (var i=0; i<sfEls.length; i++) {
			sfEls[i].onmouseover=function() {
				this.className+=" sfhover";
			}
			sfEls[i].onmouseout=function() {
				this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
				}
			}
		}
		if (window.attachEvent) window.attachEvent("onload", sfHover);
	}
}