function swapCss(elementId, offName, onName)
{

    element = document.getElementById(elementId);

    if (element) 
    {
		// Turn On
		if(element.className == offName)
		{
		    element.className = onName;
		}
		// Turn Off
		else if(element.className == onName)
		{
		    element.className = offName;
		}
	}
}