// JScript File
$(document).ready(function() 
  {
    // the only text boxes allowed are for entering card qty's.
    $('input[type=checkbox]').each(function()
      {
        this.onchange = function(event) 
        {
          alert('hello 1 ');
          this.checked=false;
        };
      }
    );
    
    $('input[type=checkbox]').bind('click', function(event)
      {
        //alert('hello 2 ');
        this.checked=false;
      }
    );
    
  }
);