I have certain Checkboxes against certain records in a datagrid, i check certain checkboxes and click on delete button, and i have a javascript confirm method before deleting the records. wht i want is that if someone clicks "cancel", i want to clear all the checkboxes.
How can i achieve this...

function ChkAvl(msg)
        {
         var del=confirm(msg);
         if(del)(//code execute when click on ok)
else{//code for when click on cancel;here yoy clear your check boxes}
        }

  butSubmit.Attributes.Add("onclick", "javascript:ChkAvl('Are sure to delete');")
I think it is working fine try it.