Check all visible rows in data table

I have Datatable i gave checkboxes to al rows,but i want to add "check all" functionality in table to the visible rows in table.Means if iam showing 10 records out of 100 recrds,i need to check those 10 records at a time in time.

I tried this script by searching in google,but it is not working properly.Can you please give anyother way