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";
}

function initCheckWindowSize() {
	window.setTimeout('checkWindowSize()', 50);
}
function checkWindowSize() {
	if(document.all) {
		if(document.body.offsetWidth < 970) {
			document.getElementById('center').className += 'center_min';
		}
	}
	//window.setTimeout('checkWindowSize()', 500);
}