var prevObj = null;

function togglepackets(obj) {
	
	var el = document.getElementById(obj);
	
	
	if ( el.style.display != 'none' ) {
		el.style.display = 'none'; 
	}
	else {
		el.style.display = '';
		
	}
	if (prevObj != null){
	
			prevObj.style.display = 'none';	 
		}
	
	prevObj = el;
}