function ToggleDivDisplay(divId)
{
    oDiv = document.getElementById(divId);
    if (oDiv != null)
        oDiv.style.display = (oDiv.style.display == "none" ? "block" : "none");
}

function HideDiv(divId)
{
    oDiv = document.getElementById(divId);
    if (oDiv != null)
        oDiv.style.display = "none";
}

function ShowDiv(divId)
{
    oDiv = document.getElementById(divId);
    if (oDiv != null)
        oDiv.style.display = "block";
}

function submitOnEnter(evt, formId)
{
    var charCode = (evt.which) ? evt.which : event.keyCode
    if(charCode == "13")
    {
        oForm = document.getElementById(formId);
        oForm.submit();
    }
}