function isNumberKey(evt)
{
    var charCode = (evt.which) ? evt.which : event.keyCode
    if (charCode > 31 && (charCode < 48 || charCode > 57))
        return false;

    return true;
}

/*Function that show div*/
function hide(id)
{
    document.getElementById(id).style.display = "none";
}

function show(id)
{
    document.getElementById(id).style.display = "block";
}