var xmlHttp;
var tag = false;

function createXMLHttpObj() 
{
    //Mozilla-based browsers
    if(window.XMLHttpRequest)
    {
        xmlHttp = new XMLHttpRequest();
    } 
    else if (window.ActiveXObject)
    {
        xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
        if (!xmlHttp)
        {
            xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
        }
    }
}

function doXMLHTTP(method, url, pars, runfunc)
{
    createXMLHttpObj();
    xmlHttp.open(method, url, true);
    xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    xmlHttp.onreadystatechange = runfunc;
    xmlHttp.send(pars);
}

function handleResponse()
{
}

function ShowTab(tabid)
{
    document.getElementById("tabs").className = tabid +"s"; 
    document.getElementById("con1").style.display = "none"; 
    document.getElementById("con2").style.display = "none"; 
    document.getElementById("con3").style.display = "none"; 
    document.getElementById(tabid.replace("tab","con")).style.display = "block"; 
}

function ShowVideo(cachesvr)
{
    var so = new SWFObject(cachesvr + "/_imgs/englishfirst/landing/spring09/player_flv.swf", "video", "376", "245", "6", "#FFFFFF");
    so.addParam("wmode", "transparent");
    so.write("video");
    var pop = document.getElementById("videopop");
    if(pop.getBoundingClientRect) //IE
    {
        pop.style.top = document.body.scrollTop + 170;
    }
    else
    {
        pop.style.top = document.body.scrollTop + 170 + "px";
    }

    pop.style.display = "block";
    if(tag == false)
    {
        doXMLHTTP("POST", "/englishfirst/spring/videocount.aspx", "", handleResponse);
        tag = true;
    }
}   
   
function HidePop()
{
    document.getElementById("videopop").style.display = "none";
    var so = new SWFObject("", "video", "376", "245", "6", "#FFFFFF");
    so.write("video");
}