Mobile Opt In/Out

opt-out.js

javascript:(function () {

	var query = window.location.search,
		params = {},
		key,
		value;

	query = query.indexOf('?') === 0 ? query.substring(1, query.length) : query;
	query = query.split('&');

	for (var i = 0; i < query.length; i++) {
		key = query[i].split('=')[0];
		value = query[i].split('=')[1];
		params[key.toLowerCase()] = value;
	}

	params.mobileoptout = prompt('Enter your mobileoptout value');

	query = [];

	for (key in params) {
		query.push(key + '=' + params[key]);
	}

	window.location.search = '?' + query.join('&');

}());