var pagename = location.pathname.toLowerCase();
if(pagename.indexOf("/vip")>0)
{
    document.getElementById("cindex").className = "menub";
}
else if(pagename.indexOf("product")>0 )
{
    document.getElementById("cproductpist").className = "menub";
}
else if(pagename.indexOf("about")>0)
{
    document.getElementById("caboutus").className = "menub";
}
else if(pagename.indexOf("trade")>0 )
{
    document.getElementById("cbusinesslist").className = "menub";
}
else if(pagename.indexOf("card")>0)
{
    document.getElementById("ccard").className = "menub";
}
else if(pagename.indexOf("new")>0)
{
    document.getElementById("cnews").className = "menub";
}
else if(pagename.indexOf("invest")>0)
{
    document.getElementById("cinvest").className = "menub";
}
else if(pagename.indexOf("certificate")>0)
{
    document.getElementById("certificate").className = "menub";
}
else if(pagename.indexOf("merchantslist/")>0)
{
    document.getElementById("cinvest").className = "menub";
}