Geting ServerSide data for selectList(custom editors for the columns) in JedEditable

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C#

jQuery

DataTable

MVC3

Following from This article
I`m trying to use a dropDownlist when i`m editiing one of the columns in the DataTable wich i have applied the Jquery dataTable and JedEditable Plugin.
in the initialztion of JedEditable:

$('#myDataTable').dataTable().makeEditable({
    "aoColumns": [
    {
        //Empty object is used for the default editable settings
    },
    null,//null for read-only columns
    {
        indicator: 'Saving...',
        tooltip: 'Click to select town',
        loadtext: 'loading...',
        type: 'select',
        onblur: 'submit',
       loadurl : 'GetSelectList',
        loadtype : 'GET'
    }
]
});

It calls the GetSelectList acction in the server but i dont know what type of data i should return to the client.I have a Category model wich has id and name.i can get them by GetCategories function,i need the final selectlist sone thing like :

<select name="category" id="country" rel="6">
                                        <option value="1">cate1</option>
                                        <option value="2">cate2</option>
                                        <option value="3">cate3</option>
                                        </select>  

i searched the net,and the only thing wich i have found was an article but in php wich it`s greek to me.
Thanks