November 19, 2008 01:53am pst

07.12.2007 at 11:34PM PDT, ID: 22693852

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7.6

Find how many checkboxes are checked by javascript realtime.

Asked by phparmy in JavaScript, Miscellaneous Web Development, Dynamic HTML (DHTML)

Tags: javascript, find, checked, checkbox, how

i want find how many checkboxs checked by javascript realtime.
i know how to find how many are checked when checkbox like.
<script>
function check_counter(abc){
var kk=0;
var ik=0;
for(ik=0;ik<abc.length;ik++){
if(abc[ik].checked){
kk++;
}
}
document.sign_form.checks_selected.value=kk;
}
</script>
<form method=post name="sign_form">
<input type="checkbox" name="a" value="1" onclick="check_counter(this.form.a);>
<input type="checkbox" name="a" value="2" onclick="check_counter(this.form.a);>
<input type="checkbox" name="a" value="3" onclick="check_counter(this.form.a);>
<INPUT type="text" name="checks_selected">
</form>
This is works fine and correctly.
But i can not do when checkboxes like.
<input type="checkbox" name="a[15]" value="1" onclick="check_counter(this.form.a);>
<input type="checkbox" name="a[10]" value="2" onclick="check_counter(this.form.a);>
<input type="checkbox" name="a[21]" value="3" onclick="check_counter(this.form.a);>

Could anyone can solve it.
Thanks.Start Free Trial

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6	javascript OPTION onclick alternative

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Find how many checkboxes are checked by javascript realtime.

Asked by phparmy in JavaScript, Miscellaneous Web Development, Dynamic HTML (DHTML)

Tags: javascript, find, checked, checkbox, how

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