var navIndex=-1;
function setNav(idx)
{
    if(idx!=navIndex)
    {
        navIndex=idx;
        
        //初始化
        $("#nav li").attr("class","");
        $("#nav li:eq(0)").attr("class","idx");
        $("#nav li:eq(7)").attr("class","dwn");
        
        $("div.child").hide();
        
        if(idx==0)
            $("#nav li:eq("+idx+")").attr("class","idx idx_sel");
        else if(idx==7)
            $("#nav li:eq("+idx+")").attr("class","dwn dwn_sel");
        else
            $("#nav li:eq("+idx+")").attr("class","sel");
        if(document.getElementById("chd_nav_"+idx)!=null)
            $("#chd_nav_"+idx).show();
    }
}
$(function(){
    $("#nav li").each(function(index){
        $(this).bind("mouseover",function(){setNav(index)});                
    });
    $("#tbar").bind("mouseover",function(){
            navIndex=-1;
            $("#nav li").attr("class","");
            $("#nav li:eq(0)").attr("class","idx");
            $("#nav li:eq(7)").attr("class","dwn");
            
            $("div.child").hide();
        });
    $("#pannel").bind("mouseover",function(){
            navIndex=-1;
            $("#nav li").attr("class","");
            $("#nav li:eq(0)").attr("class","idx");
            $("#nav li:eq(7)").attr("class","dwn");
            
            $("div.child").hide();
        });
});
function detect(){
    if($.browser.msie)
        return "IE";
    if($.browser.mozilla)
        return "Mozilla";
    if($.browser.safari)
        return "Safari";
    if($.browser.opera)
        return "Opera";
}
function addBookmark(title) {
                     var url=parent.location.href;
                     if (window.sidebar) { 
                            window.sidebar.addPanel(title, url,""); 
                     } else if( document.all ) {
                     window.external.AddFavorite( url, title);
                     } else if( window.opera && window.print ) {
                     return true;
                     }
       }
    function SetHome(obj,vrl){
            try{
                    obj.style.behavior='url(#default#homepage)';obj.setHomePage(vrl);
            }
            catch(e){
                    if(window.netscape) {
                            try {
                                    netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");  
                            }  
                            catch (e) 
     { 
                                    alert("抱歉！您的浏览器不支持直接设为首页。请在浏览器地址栏输入“about:config”并回车然后将[signed.applets.codebase_principal_support]设置为“true”，点击“加入收藏”后忽略安全提示，即可设置成功。");  
                            }
                            var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
                            prefs.setCharPref('browser.startup.homepage',vrl);
                     }
            }
    }