function setCookie (name, value) {
	document.cookie = name+"="+escape(value)+"; expires=Fri, 01-Jan-10 00:00:01 GMT";
	
} 

function getCookie (name) {
	var prefix = name + "=";
	var cookieStartIndex = document.cookie.indexOf(prefix);
	if (cookieStartIndex == -1) return '';
	var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex + prefix.length);
	if (cookieEndIndex == -1) cookieEndIndex = document.cookie.length;
	return unescape(document.cookie.substring(cookieStartIndex + prefix.length, cookieEndIndex));
} 

function deleteCookie (name) {
	if (getCookie(name)) { 
		document.cookie = name + "=; expires=Thu, 01-Jan-99 00:00:01 GMT";
	}
}