var t;
window.onload=show;
function show(id) {
	var d = document.getElementById('smenu'+id);
	// first, clear all tabs
	clear();
	// show only this tab
	if (d) {
		d.style.display='block';
		document.getElementById('tmenu'+id).className = 'sticky';
		// timeout after x seconds
		t=setTimeout("clear()",5000);
	}
}

function clear() {
	clearTimeout(t);
	for (var i = 1; i<=5; i++) {
		if (document.getElementById('smenu'+i)) {
			document.getElementById('smenu'+i).style.display='none';
			document.getElementById('tmenu'+i).className = 'unsticky';
		}
	}
}