function ajax(u, c, q)
{
	var r = new ("ActiveXObject" in window ? ActiveXObject("Msxml2.XMLHTTP") : XMLHttpRequest()); // microsoft sucks
	r.onreadystatechange = function ()
	{
		if (r.readyState === 4)
		{
			c(r.responseText);
		}
		delete r;
	}
	var post = (q != null);
	r.open(post ? 'POST' : 'GET', u, true);
	post ? r.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8') : 0;
	r.send(q);
}

function collect_form(id)
{
	var e = document.getElementById(id).elements;
	var q = '';
	var i = 0;
	for (i = 0; i < e.length; i++)
	{
		if (e[i].type != 'submit')
		{
			q += (i > 0 ? '&' : '') + e[i].name + '=' + (e[i].type === 'checkbox' ? (e[i].checked === true ? '1' : '0') : e[i].value);
		}
	}
	return q;
}

function b64_utf8(s)
{
	while (s.indexOf('%22') > -1)
	{
		s = s.replace('%22', '"');
	}
	return window.btoa(unescape(encodeURIComponent(s)));
}