function getElement(id)
{
    return document.getElementById(id);
}

function hide(element)
{
    if (element)
    {
        element.style.visibility = "hidden";
        element.style.display = "none";
    }
}

function show(element)
{
    if (element)
    {
        element.style.visibility = "visible";
        element.style.display = "block";
    }
}

function toggle(element)
{
    if (element)
    {
        if (element.style.visibility == "visible")
        {
            element.style.visibility = "hidden";
            element.style.display = "none";
        }
        else
        {                
            element.style.visibility = "visible";
            element.style.display = "inline";
        }
    }
}

function selectedValue(ddl) {
    if (element)
        return ddl.options[ddl.selectedIndex].value;
}