Select child rows

HTML

<link rel="stylesheet" href="http://cdn.kendostatic.com/2012.1.229/styles/kendo.common.min.css">
<script src="http://cdn.kendostatic.com/2013.2.716/js/jquery.min.js"></script>
<link rel="stylesheet" href="http://cdn.kendostatic.com/2013.2.716/styles/kendo.default.min.css">
<script src="http://cdn.kendostatic.com/2013.2.716/js/kendo.all.min.js"></script>
<div id="gridMasterInfo"></div>
<div id="gridInductedTasks"></div>

CSS

#gridMasterInfo, #gridInductedTasks {
    width : 45%;
    height: 100%;
    margin: 2%;
    float: left;
}

.childcheckbox, .parentcheckbox {
    
}

JavaScript

// Source Grid
var gridMasterInfo = $("#gridMasterInfo").kendoGrid({
    dataSource: {
        type: "odata",
        transport: {
            read: "http://demos.telerik.com/kendo-ui/service/Northwind.svc/Employees"
        },
 
    schema: {
        model: {
          id: "FirstName",
          fields: {
            FirstName: {
              editable: false,
              nullable: true
            },
            Select: {
            },
            City: {
            }
          }
        }
      },
        
        
        pageSize: 6,
        serverPaging: true,
        serverSorting: true
    },    
    height: 530,
    sortable: true,     
    detailInit: detailInit,       
    columns: [
        {
            field: "Select",
            title: "Sel",
            width: "25px",
            template: "<input type='checkbox' class='parentcheckbox' />"
        },
        {
            field: "FirstName",
            title: "First Name",
            width: "110px"
        },
        {
            field: "City",
            width: "110px"
        }
    ]
});

// Child grid of the source grid
function detailInit(e) {
    $("<div class='ob-child-grid' />").appendTo(e.detailCell).kendoGrid({
        dataSource: {
            type: "odata",
            transport: {
                read: "http://demos.telerik.com/kendo-ui/service/Northwind.svc/Orders"
            },
            schema: {
                model: {
                  id: "OrderID",
                  fields: {
                    OrderID: {
                    },
                    Select: {
                    },
                    ShipCountry: {
                    }
                  }
                }
              },            
            serverPaging: true,
            serverSorting: true,
            serverFiltering: true,
            pageSize: 5,
            filter: { 
                field: "OrderID", operator: "lt", value: 10251 }
        },
        scrollable: false,
        sortable:...