var largeExpDate = new Date();
largeExpDate.setTime(largeExpDate.getTime() + (365 * 24 * 3600 * 1000));

function setDocCookie(name, value, expires, path, domain, secure) 
{
	var curCookie = name + "=" + escape(value) +
		((expires) ? "; expires=" + expires.toGMTString() : "") +
		((path) ? "; path=" + path : "; path=/") +
		((domain) ? "; domain=" + domain : "") +
		((secure) ? "; secure" : "");
//		document.cookie = "";
		document.cookie = curCookie;
}

function getDocCookie(name) 
{
	var dc = document.cookie;
	var prefix = name + "=";
	var begin = dc.indexOf(prefix);
	if (begin == -1)
		return null;

	var end = document.cookie.indexOf(";", begin);
	if (end == -1)
		end = dc.length;
//	alert(name + ' ' + begin + ' ' + prefix.length + ' ' + end);
	return unescape(dc.substring(begin + prefix.length, end));
}

function deleteDocCookie(name, path, domain) 
{
	document.cookie = name + "=" + 
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		"; expires=Thu, 01-Jan-70 00:00:01 GMT";
}

function SaveCurrentResolution()
{
	var CurrentResolution = '';
	if(screen)
	{
		CurrentResolution += 'ah=' + screen.availHeight + ';';
		CurrentResolution += 'aw=' + screen.availWidth + ';';
		CurrentResolution += 'h=' + screen.height + ';';
		CurrentResolution += 'w=' + screen.width + ';';
		setDocCookie('BrowserResolution', CurrentResolution, largeExpDate);
	}
}

SaveCurrentResolution();