Bind combobox on change of another combobox of property grid of easyui

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jQuery-UI

Hi,
I need to bind jquery easy ui property grid Factor combobox on change of another property grid visible combobox.

<table class="easyui-propertygrid" id="propGridJS" style="width: 300px">
    </table>

js code is

Quote:

var data =
[
{ "name": "Visible",
"value": "",
"group": "Score",
"editor": { "type": "combobox", "options": {
"valueField": "id",
"textField": "text",
"required": "true",
"data": [
{ "id": 1, "text": "True" },
{ "id": 2, "text": "False" }
],
"onChange": function (value) {
// need to write code here

}
}
}
},
{ "name": "Min value",
"value": "30",
"group": "Score",
"editor": "numberbox"

},
{ "name": "Factor",
"value": "",
"group": "Fac/SubFac",
"editor": {
"type": "combobox",
"options": {
"valueField": "id",
"textField": "text"
}
}

}
]
$('#propGridJS').propertygrid('loadData', data);
$('#propGridJS').propertygrid({ title: 'Question', showGroup: true, scrollbarSize: 0});

need help on this not finding any thing on google