function openPopup(u, w, h)
{
	var l = Math.floor((screen.width-w)/2);
	var t = Math.floor((screen.height-h)/2);           
	window.open(u,"","width=" + w + ",height=" + h + ",top=" + t + ",left=" + l + ", scrollbars=yes");
	return false;
}

function rDoAjax(url, params, dest)
{
	var date = new Date();
	
	if(!params)
		params = {};
		
	params.ts = date.getTime();
	
	$.ajax({
		url: url,
		data: params,
		type: 'GET',
		success: function(data)
		{
			$('#' + dest).html(data);
		},
		error: function(req, descr, ex) {
			$('#' + dest).html('error');
		}
	});
}

function checkNumber(input) 
{
	while (input.value.length > 0 && !input.value.match(/^[0-9]+$/))
		input.value = input.value.substring(0, input.value.length-1);
}

function getCookieVal (offset) {
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1) endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}

function getCookie (name) {
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen) {
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg){
		    return getCookieVal (j);
		}
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) break;
	}
	return null;
}

function setCookie (name, value) {
    var argv = setCookie.arguments;
	var argc = setCookie.arguments.length;
	var expires = (argc > 2) ? argv[2] : null;
	var path = (argc > 3) ? argv[3] : null;
	var domain = (argc > 4) ? argv[4] : null;
	var secure = (argc > 5) ? argv[5] : false;
	document.cookie = name + "=" + escape (value) +
	((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
	((path == null) ? "" : ("; path=" + path)) +
	((domain == null) ? "" : ("; domain=" + domain)) +
	((secure == true) ? "; secure" : "");
}

function deleteCookie (name) {
	var exp = new Date();
	exp.setTime (exp.getTime() - 1);
	var cval = getCookie (name);
	//document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
	document.cookie = name + "=;expires=Thu, 01-Jan-1970 00:00:01 GMT" + ";path=/";
}