function addEvents() {

  var original_navBar_style = document.getElementById("navBar").style.background;

  var sfEls = document.getElementById("navigation").getElementsByTagName("LI");

	for (var i=0; i < sfEls.length; i++) {

    sfEls[i].onmouseover = function() {
        for (var x=0; x < sfEls.length; x++) clear_hover(sfEls[x]);

		if (this.id == "contact"){
			document.getElementById("navBar").style.background="#EC4621 url('/images/assets/navbar_background_green.png') no-repeat";
		}

        this.className+=" hover";
    }

    sfEls[i].onmouseout  = function() {

		clear_hover(this);
		document.getElementById("navBar").style.background=original_navBar_style;

	}

  }

}

function clear_hover(el) {

    el.className=el.className.replace(new RegExp("hover\\b"), "");
    el.className=el.className.replace(new RegExp(" hover\\b"), "");

}

addLoadEvent(addEvents);