// @author Vlad	Skarzhevskyy
// @version	$Revision: 1.1 $ ($Author: vlads $)

var TIMEZONE_OFFSET_COOKIE = "TimezoneOffset";

function setTimezoneOffsetCookie() {
    //if (getCookie(TIMEZONE_OFFSET_COOKIE) != null) {
    //    return;
    //}
    var now = new Date();
    setCookie(TIMEZONE_OFFSET_COOKIE, (now.getTimezoneOffset() / 60));
}


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" : "");
}