function ChangeTab(obj)
{
    var ctLi = $("#div_Tabs > div[class='TabsMenus_body'] > div");
    if(obj == null)
    {
        //初始化
        for(var i=0;i<ctLi.length;i++)
        {
            var _a = $(ctLi[i]).children("a");
            _a.css("cursor","pointer");
            _a.bind("mouseover",{index:i},ChangeTab);
        }
        ChangeTab(0);
    }else{
        //改变时
        var ctDiv = $("#div_Tabs > div[class!='TabsMenus_body']");
        var index = null;
        if(typeof obj == "number")
            index = obj;
        else
            index = obj.data.index;
        
        //内容    
        ctDiv.hide();
        $(ctDiv[index]).show();
        //菜单
        ctLi.children("a").attr("class","");
        $(ctLi[index]).children("a").attr("class","active");
    }
}