复制内容到剪贴板 代码:     //根据URL地址的参数或字符串高亮当前菜单。
    function hightLightMenu(firstMenuID,twoMenuID){
    var strUrl,strHref,subNavs,strLast,strParentID,strSelfID,parentID,selfID,strID;            
    var Navs=document.getElementById(firstMenuID).getElementsByTagName("a");                        
    // 如果链接没有参数，或者URL链接中不存在我们要获取的参数，则返回数组中的序号
    if(location.href.indexOf("?")==-1){
        strUrl=location.href.substring(location.href.lastIndexOf("/")+1);//取得URL页面名称            
        //一级菜单高亮                    
        for (var i = 0; i < Navs.length; i++) {            
            //在IE6,IE7中strHref获得的是全路径，而在IE8和ff中获得的是页面名称，为了兼容，需要将它的字符串进行拆分
            strHref=Navs[i].getAttribute("href").substring(Navs[i].getAttribute("href").lastIndexOf('/')+1);                    
            if(strUrl==strHref){
                //高亮当前菜单项                        
                addClass(Navs[i],"cur");            
            }
            else{//如果是其它项，则绑定鼠标两态事件                            
                (function(i){
                    var obj=Navs[i];              
                    addEventHandler(obj,"mouseover",function(){overMe(obj)});
                    addEventHandler(obj,"mouseout",function(){outme(obj)});
                })(i)                             
            }                    
        }        
        //二级菜单高亮
        if (document.getElementById(twoMenuID) != null) {//判断是否存在二级菜单    
            //有可能二级菜单不存在，如首页只有一级菜单，所以当菜单id存在时，则...            
            subNavs = document.getElementById("othermenu").getElementsByTagName('a');
            for (var n = 0; n < subNavs.length; n++) {
                hightlight(subNavs,n,0);//默认高亮第一个菜单项                
            }
        }
    }
    else{
        //如果url中带有参数的页面，则...            
        strLast = location.href.substring(location.href.indexOf("?")+1);    
        strParentID=strLast.substring(0,strLast.indexOf("&"));
        strSelfID=strLast.substring(strLast.indexOf("&")+1);    
        parentID=strParentID.substring(strParentID.indexOf("=")+1);//获得第一个参数，这是一级菜单的id
        selfID=strSelfID.substring(strSelfID.indexOf("=")+1);//获得第二个参数，这是二级菜单的id   
        
        //一级菜单高亮    
        for (var i = 0; i < Navs.length; i++) {
            hightlight(Navs,i,parentID);                                                                        
        }
        //二级菜单高亮
        if (document.getElementById(twoMenuID) != null) {//判断是否存在二级菜单            
            subNavs = document.getElementById(twoMenuID).getElementsByTagName('a');
            for (var n = 0; n < subNavs.length; n++) {
                strID=selfID - 1;                
                hightlight(subNavs,n,strID);                
            }
        }
    }        
    }
    //高亮函数
    function hightlight(elementArray,inumber,curMenuIndex){
    if (inumber == curMenuIndex) {        
        addClass(elementArray[inumber],"cur");//高亮当前菜单样式
    }
    else {
        (function(inumber){
            var obj = elementArray[inumber];
            addEventHandler(obj, "mouseover", function(){overMe(obj)});//增加鼠标移上去时的事件
            addEventHandler(obj, "mouseout", function(){outme(obj)});//增加鼠标移走时的事件
        })(inumber)
    }    
    }

经过如上一番设置，一个通用、兼容的高亮函数就诞生了，我们看看它的效果截图：