// Creating and reading credit: http://stackoverflow.com/a/1460174/1177153
function createCookie( name, value, days ) {
	var expires;
	if ( days ) {
		var date = new Date();
		date.setTime( date.getTime()+( days * 24 * 60 * 60 * 1000 ) );
		expires = "; expires="+date.toGMTString();
	} else {
		var expires = "";
	}
	
	document.cookie = name + "=" + value + expires + "; path=/";
}

function readCookie( name ) {
	var nameEQ = name + "=";
	var ca = document.cookie.split( ";" );
	for ( var i = 0; i < ca.length; i++ ) {
		var c = ca[i];
		while ( c.charAt(0)==" " ) c = c.substring( 1, c.length );
			if ( c.indexOf( nameEQ ) == 0 ) return c.substring( nameEQ.length, c.length );
	}
	return null;
}