var clearer = 0;

function tester() {
	alert('fired');
}

function showsub(obj) {
	obj.childNodes[1].style.display = "block";
}

function hidesub(obj) {
	clearer = setTimeout(function () { obj.childNodes[1].style.display = 'none' },50);
}

function unsetclearer() {
	clearTimeout(clearer);
}