function SelectTab(id)
{
    var listitems = document.getElementsByTagName("li");
    for (i=0;i<listitems.length;i++)
    {
        if (listitems[i].className == "tab_selected")
        {
            document.getElementById("tabpanel_"+listitems[i].id.charAt(4)).style.display = "none";
            listitems[i].className = "";
        }
    }
    document.getElementById("tabpanel_"+id).style.display = "block";
    document.getElementById("tab_"+id).className = "tab_selected";
}

function SelectCustomTab(id)
{
    var listitems = document.getElementsByTagName("li");
    for (i=0;i<listitems.length;i++)
    {
        if (listitems[i].className == "custom_selected")
        {
            document.getElementById("custompanel_"+listitems[i].id.charAt(7)).style.display = "none";
            listitems[i].className = "";
        }
    }
    document.getElementById("custompanel_"+id).style.display = "block";
    document.getElementById("custom_"+id).className = "custom_selected";
}