[Solved] Refresh Data in cell while editing

[Jonisan]

Hello ,

I have a normal grid to witch I do Ajax editing. Some columns in the grid are readonly and the value
of this columns is calculated with the value of close by columns. I get the OnEditValue event and I try to change the value
in the readonly cell:
 function onEditFK(e)
{       
             if (e.value == "0") {                 
                 document.getElementById('qTons').readOnly = false;
                 document.getElementById('qTons').style.backgroundColor = 'white';
             } else {               
                 document.getElementById('qTons').readOnly = true;
                 document.getElementById('qTons').style.backgroundColor = 'gray';
                 $.post('<%=Url.Action("CalculateTons", "Quarry")%>',
                     { value: e.value },
                     function (result) {
                         document.getElementById('qTruckValue').value = result;
                         document.getElementById('qTons').value = result * document.getElementById('qLoadCountNr').value;
                         document.getElementById('qTruckValue').focus();
                         document.getElementById('qTons').focus();
                     });
             }
         }

My problem is that qTons is readOnly and the focus() gives an error in IE8 . Is there a way to refresh the value in qTons while editing ?