change items in a kendoComboox

[pasquale]

hello!!!
i hope someone can help me...
i fill a combobox with a variable, but when i push a button, i need to change items in smy comboBox.. this is my code

<script type="text/javascript">

        var combobox;

        var data = [

                        { text: "White", value: "1" },

                        { text: "Black", value: "2" }

                    ];

 $(document).ready(function () {

               combobox = $("#cmb").kendoComboBox({

                dataSource: data,

                dataTextField: "text",

                dataValueField: "value"

 

            }).data("kendoComboBox");

function changeItems (){

 data = [

                        { text: "Blue", value: "1" },

                        { text: "Green", value: "2" }

                    ];

//now i want to change the items of my combobox

}

.... and also

<input type="button" value="Change" id="change" onclick="return changeItems();"/>

how can i do without refresh the page???

thanks in advance