// BEGIN WEBND COPYRIGHT
// (c) 2000-2008 WebND Technologies PTY LTD (http://webnd.com.au/)
// Released under the GNU Affero GPL v3.  Seeing doc/COPYING for details.
// END WEBND COPYRIGHT


function countdown(fid,duration) {
	var layer=document.getElementById(fid);
	layer.expires=duration;
	var now=new Date();
	var secs=Math.floor(now.getTime()/1000,0);
	layer.remaining_time=duration-secs;
	if(layer.timer) {
	    clearTimeout(layer.timer);
	}
	layer.timer = setTimeout("countdown_reduce('" + fid + "')",1000);
}

function countdown_reduce(fid) {
	var layer=document.getElementById(fid);
	var bob = Math.floor(layer.remaining_time--/60);
	if (bob <= 0) {
		bob = '--';		
	} else {
		layer.timer = setTimeout("countdown_reduce('" + fid + "')",1000);
	}
	layer.innerHTML = bob;
}