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Check All- Check None script for array of checkboxes

Discussion in 'JavaScript' started by computerzworld, Jan 17, 2008.

0
  1. #1
    Hello,
    I have an array of checkbox as mycheckbox[]. How can I make all these checkboxes checked and unchecked using clicking on link/button? Please help me. Thanks in advance.
     
    computerzworld, Jan 17, 2008 IP
  2. rkquest

    rkquest Well-Known Member

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    #2
    Try this one..

    
<script>
function select(a) {
	var theForm = document.myForm;
	for (i=0; i<theForm.elements.length; i++) {
		if (theForm.elements[i].name=='mycheckbox[]')
			theForm.elements[i].checked = a;
	}
}
</script>

<form name="myForm">
<input type="checkbox" name="mycheckbox[]" value="somevalue1" /><br/>
<input type="checkbox" name="mycheckbox[]" value="somevalue2" /><br/>
<input type="checkbox" name="mycheckbox[]" value="somevalue3" />
</form>

<a href="javascript:select(1)">Check all</a> |
<a href="javascript:select(0)">Uncheck all</a>
    HTML:
     
    rkquest, Jan 17, 2008 IP