function Show(wint)
{
    document.getElementById(wint).style.display = "block" ;
}

function Hide(wint)
{
    document.getElementById(wint).style.display = "";
}

function ShowHide(wint)
{
    document.getElementById(wint).style.display =
        (document.getElementById(wint).style.display == "") ? "block" : "";
}