jQuery Grid Plugin - jqGrid

Hi, I have a grid, which has a 'boolean' column (1 or 0). I have a formatter on this column, which says, when '1' display a Tick.gif, when 0, display a Cross.gif, (based on the jqgrid examples available from http://tpeczek.codeplex.com/re.....view/61796)

that works well.

however, When Using formEditor fuinctionality, the value That I am seeing passed to the form is the  <img > tag of The appropriate gif used. and NOT 1 or 0.

I want the edittype of this column to be edittype: 'checkbox', editoptions {value:"1:0"} 

and when Save is clicked, a '1' or '0' value passed to the controller url to save the proper value. 

How can i do this?

Code extracts:

..

..

colModel: [

                { name: 'LogonName', index: 'LogonName', align: 'left', width:80, editable:true },

                { name: 'FullName', index: 'FullName', align: 'left', editable:true, width: 200 },

                { name: ''Enabled', index: 'IsTranbase', align: 'center', width: 30, editable:true, formatter: YesNoFormatter,edittype: 'checkbox', editoptions: {value:"1:0"} },

                { name: 'myac', width:80, fixed:true, sortable:false, resize:false, editable:false, formatter:'actions', formatoptions:{ keys:true, delOptions: { url : encodeURI('@Url.Action("Delete")') }

}

..

..

function YesNoFormatter(cellvalue, options, rowObject) {

        var cellValueInt = parseInt(cellvalue);

        if (cellValueInt == 1)

                return "<img src='@Url.Content("~/Content/images/tick.gif")' />";

        else

                return "<img src='@Url.Content("~/Content/images/cross.gif")' />";

};