var classNameOrg;
function ieNav() {
    var navigation = document.getElementById("navigation");
    var listitems = navigation.getElementsByTagName("li");
    for (var i = 0; i < listitems.length; i++) {

        //if (listitems[i].className.indexOf("here") != -1) continue;
        listitems[i].onmouseover = function() {
            classNameOrg = this.className
            this.className = "nav_over";
        }
        listitems[i].onmouseout = function() {
            if (classNameOrg.indexOf("here") != -1)
				this.className = "here";
            else
                
				this.className = classNameOrg;

        }
    }
}

addLoadEvent(ieNav);