select all checkboxes in single check
<html> <title> select all checkboxes in single check </title> <head> <script language=javascript> checked=false; function checkedAll (form1) { var aa= document.getElementById('form1'); if (checked == false) { checked = true } else { checked = false } for (var i =0; i < aa.elements.length; i++) { aa.elements[i].checked = checked; } } </script </head> <body> <form name="form1" meth...