Check/Uncheck all checkboxes based on one check box
Bassed on http://www.bigbold.com/snippets/posts/show/350
1 2 <html> 3 <head> 4 <script language='JavaScript'> 5 checked = false; 6 function checkedAll () { 7 if (checked == false){checked = true}else{checked = false} 8 for (var i = 0; i < document.getElementById('myform').elements.length; i++) { 9 document.getElementById('myform').elements[i].checked = checked; 10 } 11 } 12 </script> 13 </head> 14 <body> 15 <form id="myform"> 16 <input type="checkbox" name="foo"/> 17 <input type="checkbox" name="bar"/> 18 <BR>Check all: <input type='checkbox' name='checkall' onclick='checkedAll();'> 19 </form> 20 </body> 21 </html>
