Capturing the event of checkbox in datatable

Sindhuri

I have 2 columns with checkboxes and upon selecting one the other one shud also get selected. But not working.
Below are the 2 columns, how do i get the event of one checkbox and select the other one.

{ mDataProp : 'inputMandatory', "fnRender": function ( oObj ) {

if(oObj.aData["inputMandatory"]=='Y'){
return ' ';
}
else {
return ' ';
}
} } , { mDataProp : 'visible' , "fnRender": function ( oObj ) {

if(oObj.aData["visible"]=='Y'){

return ' ';
}
else{
return ' ';
}
} }


Please help.....