function toggleEvent(obj){
	var baseTR = Element.up(obj,'tr');
	if(obj.innerHTML == 'Event Details >>'){
		baseTR.nextSiblings()[0].down('table').show();
		obj.innerHTML = 'Hide Details <<';
	}else{
		baseTR.nextSiblings()[0].down('table').hide();
		obj.innerHTML = 'Event Details >>';
         }
}