function hidecontent(iddiv)
{
    var div = document.getElementById(iddiv);
    if (navigator.appName.indexOf("Microsoft") != -1 && parseInt(navigator.appVersion)>=4)
    {
        div.style.display = "none";
    }
    else
        div.style.display = "block";
}

function showcontent(iddiv)
{
    var div = document.getElementById(iddiv);
    div.style.display = "block";
}