function ToggleDiv(obj)
{
	  // toggle visisibility of next found div
    var dv = obj;
    while(dv.nodeName!="DIV" && dv.nextSibling!=null)
        dv = dv.nextSibling;
    if(dv.nodeName=="DIV")
    {
        if(obj.className=="details_on")
        {
            dv.className="details_off";
            obj.className="details_off";
        }
        else
        {
            dv.className="details_on";
            obj.className="details_on";
        }
    }
}