jQuery Grid Plugin - jqGrid

Hi everyone,

I'm having a problem with the implementation of my jqGrid in my site.

What I'd like to do is make an attribute editable only if the value of a certain cell within a line is TRUE or FALSE.

It seem to work on the first row selection, but when a click another line the parameters stays unchanged.

Here is what I did :

beforeSelectRow: function(rowid, e) {
                var data = jQuery("#myGrid").jqGrid('getRowData',rowid);
                if( data["regimeReel"] == "false" ){
                    jQuery("#myGrid").setColProp('columnOne',{editable : true });
                    jQuery("#myGrid").setColProp('columnTwo',{editable : false });
                } else {
                    jQuery("#myGrid").setColProp('columnOne',{editable : false });
                    jQuery("#myGrid").setColProp('columnTwo',{editable : true });
                }

            return true;
            }

Thanks to any helping hand