$(document).ready(function () {
    var cities;

    $.ajax({
        type: "POST",
        url: "WebService.asmx/GetCities",
        success: function (data) {
            cities = data.text.split(';');

        }
    });

    $('#location').autocomplete(cities, {
        autoFill: true,
        selectFirst: true,
        width: '240px'
    });


});