function showsubmenu(sid)
{
    whichEl = document.getElementById("submenu"+sid);
    if (whichEl.style.display == "none")
    {
        eval("submenu" + sid + ".style.display=\"\";");
    }
    else
    {
        eval("submenu" + sid + ".style.display=\"none\";");
    }
}


function GetQueryString(name) {
   var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)","i");
   var r = window.location.search.substr(1).match(reg);
   if (r!=null) return unescape(r[2]); return null;
}

function GetUtmInfo()
{  
   var utm_source = "utm_source";
   var utm_medium = "utm_medium";
   var utm_term = "utm_term";
   var utm_campaign = "utm_campaign";
   
   var dt= new Date();
   var weekfromNow = new Date(dt.getTime()+86400000);
   
   var soruce = GetQueryString(utm_source);
   var medium = GetQueryString(utm_medium);
   var term = GetQueryString(utm_term);
   var campaign = GetQueryString(utm_campaign);
   
    if( soruce != null)
    {
        setCookie(utm_source,soruce,weekfromNow,"/");
        setCookie(utm_medium,medium,weekfromNow,"/");
        setCookie(utm_term,term,weekfromNow,"/");
        setCookie(utm_campaign,campaign,weekfromNow,"/");
    }
}

GetUtmInfo();

function setCookie(name, value, expires, path, domain, secure)
{
    document.cookie= name + "=" + escape(value) +
        ((expires) ? "; expires=" + expires.toUTCString() : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");
}


function getCookie(name)
{
    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);
    if (begin == -1)
    {
        begin = dc.indexOf(prefix);
        if (begin != 0) return null;
    }
    else
    {
        begin += 2;
    }
    var end = document.cookie.indexOf(";", begin);
    if (end == -1)
    {
        end = dc.length;
    }
    return unescape(dc.substring(begin + prefix.length, end));
}


function deleteCookie(name, path, domain)
{
    if (getCookie(name))
    {
        document.cookie = name + "=" + 
            ((path) ? "; path=" + path : "") +
            ((domain) ? "; domain=" + domain : "") +
            "; expires=Thu, 01-Jan-70 00:00:01 GMT";
    }
}