function ToggleElementDisplay(elementNamesArray, elementName)
{
    var i;
    for(i=0;i<elementNamesArray.length;i++)
    {
       var element=document.getElementById(elementNamesArray[i]);
       if (element)
       {
        element.style.display='none';
       }
    }
    var element=document.getElementById(elementName);
    element.style.display='block';
}