function getCookie(name) {
	var start = document.cookie.indexOf( name + "=" );
	var len = start + name.length + 1;
	if ((!start) && (name != document.cookie.substring(0, name.length))) {
		return null;
	}

	if (start == -1) {
		return null;
	}
	
	var end = document.cookie.indexOf(';', len);
	if (end == -1) {
		end = document.cookie.length;
	}
	
	return unescape( document.cookie.substring(len, end));
}

function setCookie(name, value, expires, path, domain, secure) {
	var today = new Date();
	today.setTime( today.getTime() );
	if ( expires ) {
		expires = expires * 1000 * 60 * 60 * 24;
	}
	
	var expires_date = new Date(today.getTime() + (expires));
	document.cookie = name+'='+escape(value) + ((expires ) ? ';expires='+expires_date.toGMTString() : '') + (( path) ? ';path=' + path : '') + ((domain) ? ';domain=' + domain : '') + ((secure) ? ';secure' : '');
}

function deleteCookie(name, path, domain) {
	if (getCookie(name)) {
		document.cookie = name + '=' + ((path) ? ';path=' + path : '') + ((domain) ? ';domain=' + domain : '') + ';expires=Thu, 01-Jan-1970 00:00:01 GMT';
	}
}