var t;
var item = '';
function displayBox(itemNum){
	if((item != '') && (item != ('popupbox' + itemNum)))	{
		hideBox();
	}
	item = 'popupbox' + itemNum;
	clearTimeout(t);
	document.getElementById(item).style.visibility = 'visible';
}

function displayState(){
	clearTimeout(t);
	document.getElementById(item).style.visibility = 'visible';
}

function hideBox(){
	document.getElementById(item).style.visibility = 'hidden';
}

function Timer(){
	t = setTimeout('hideBox()',1);
}