var visible=false;
function showthread(thread_id) {
	if(visible) var nd='none'; 
	else var nd='block';
	visible=!visible;
	for(var i=1;document.getElementById('t' + thread_id + i);i++) document.getElementById('t' + thread_id + i).style.display=nd;
} function makeInVisible(obj) {						
	document.getElementById("ul" + obj).style.display = "none";
	document.getElementById("a1" + obj).style.display = "none";
	document.getElementById("a2" + obj).style.display = "";						
} function makeVisible(obj) {
	document.getElementById("ul" + obj).style.display = "";
	document.getElementById("a1" + obj).style.display = "";
	document.getElementById("a2" + obj).style.display = "none";
}