Simple jQuery Jump List

select_jump_list.js

$('select.jump_list').change(function() {
	if (!this.value) {
		return;
	}

	var url, url_len, last_char;

	if (this.value.match('://')) {
		window.top.location = this.value;
	}
	else {
		url = window.location.toString();
		url_len = url.length;
		last_char = url.substring(url_len - 1, url_len);

		if (last_char === '/') {
			window.top.location = url + this.value;
		}
		else {
			window.top.location = url + '/' + this.value;
		}
	}
});