function setCheckbox(dataitem, datafield) {
var chk = document.getElementById('rdbtn');
chk.selecteditem = dataitem.GetMember(datafield).Value;
}
function getCheckbox() {
var chk = document.getElementById('rdbtn');
return chk.selecteditem;
}
function GetSubTotal(column) {
var total = 0;
var table = column.Table;

var recordCount = table.getRowCount();

for (var i =...