function DeleteData(ID) { var ctrlId=ID.id; var divcontents=document.getElementById(ctrlId).innerHTML; var tabid=ctrlId.replace(/div/,\'tab\'); var tabcontents=
You can't set value to a table's innerHTML, you should access to child cells or rows and change them like that :
document.getElementById(tabid).rows[0].cells.innerHTML = 'blah blah';
For more info/example : Table, TableHeader, TableRow, TableData Objects