var timeoutId = 0;

function show(id) {
   var e = document.getElementById(id);
   e.style.display = 'block';
}

function hide(id) {
   var e = document.getElementById(id);
   e.style.display = 'none';
}

function hide_delayed(id, timeoutms) {
	timeoutId = setTimeout("hide(\'"+id+"'\)", timeoutms);
}