function Navactive(navID,navactiveCss,navLeftCss,navRightCss){
var nav_id = navID;
var nav_active_css =navactiveCss
var nav_left_css =navLeftCss 
var nav_right_css =navRightCss 
var nav_obj;
this.navInit=function() {
	var boxObj=document.getElementById(nav_id);
	if(!boxObj)return;
    nav_obj = boxObj.getElementsByTagName("li");
    for (var x = 0; x < nav_obj.length; x++) {
        var location = window.self.location.toString();
        if (location.indexOf(nav_obj.item(x).getElementsByTagName("a").item(0).getAttribute("href")) != -1) {
            if (x == 0) {
                nav_obj.item(x).className = nav_left_css;
            } else if (x == nav_obj.length - 1) {
                nav_obj.item(x).className = nav_right_css;
            } else {
                nav_obj.item(x).className = nav_active_css;
            }
        }
        nav_obj.item(x).getElementsByTagName("a").item(0).setAttribute("onfocus", "this.blur();");
    }
}
function navClicked(e) {
    if (!e) e = window.event;
    for (var x = 0; x < nav_obj.length; x++) {
        try {
            if (nav_obj.item(x) != this) nav_obj.item(x).className = "";
            else {
                nav_obj.item(x).className = nav_active_css
            };
        } catch(e) {}
    }
}
}
function bindEvent(obj, type, fn) {
    if (window.addEventListener) {
        obj.addEventListener(type, fn, true);
    } else {
        obj.attachEvent("on" + type, fn);
    }
}
function loads(){
   var nav1=new Navactive("content_left","active1","active1","active1");
   nav1.navInit();
}
bindEvent(window, "load", loads);