function setCookie(cookieName, cookieValue)
{
	var expiryDate = new Date();
	expiryDate.setDate(expiryDate.getDate() + DAYS_TILL_COOKIE_EXPIRY);
	document.cookie = cookieName + "=" + escape(cookieValue) + ";expires="+expiryDate.toGMTString();
}

function getCookie(cookieName) 
{
	if (document.cookie.length>0) {
		var startPos = document.cookie.indexOf(cookieName + "=");
		if (startPos>=0) { 
			startPos = startPos + cookieName.length + 1;
			var endPos = document.cookie.indexOf(";",startPos);
			if (endPos<0) {
				endPos = document.cookie.length;
			}
			return unescape(document.cookie.substring(startPos, endPos));
		} 
	}
	return null;
}

function setTextBoxToCookieValue(cookieName, textBox)
{
	var value = getCookie(cookieName);
	textBox.value = (value!=null) ? value : "";
}

function setSelectToCookieValue(cookieName, select, defaultIndex)
{
	setSelectValue(getCookie(cookieName), select, defaultIndex);
}

function setSelectValue(value, select, defaultIndex)
{
	if (value!==null) {
		for (var i=0; i<select.options.length; i++)
			if (select.options[i].value==value) {
				select.selectedIndex = i;
				return;
			}
	} else {
		select.selectedIndex = defaultIndex;
	}
}