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_
}
</script>
<form method=post name="sign_form">
<input type="checkbox" name="a" value="1" onclick="check_counter(thi
<input type="checkbox" name="a" value="2" onclick="check_counter(thi
<input type="checkbox" name="a" value="3" onclick="check_counter(thi
<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(thi
<input type="checkbox" name="a[10]" value="2" onclick="check_counter(thi
<input type="checkbox" name="a[21]" value="3" onclick="check_counter(thi
Could anyone can solve it.
Thanks.
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Or this, if you want to count how many a[] and how many b[]
function check_counter(theBox){
var theForm = theBox.form;
var prefix = theBox.name.substring(0,th
var kk = 0;
for(i=0;i<theForm.elements
var elem = theForm.elements[i];
if(elem.type=='checkbox' && elem.name.indexOf(prefix+'
kk++;
}
}
document.sign_form.checks_
}
<input type="checkbox" name="a[21]" value="3" onclick="check_counter(thi
May I help out here ;-)
<html>
<head>
<title>Zvonko *</title>
<script>
function check_counter(theBox,count
var elem = theBox.form.elements;
var cc=0;
for(var i=0;i<elem.length;i++){
if(elem[i].name.match(name
cc++;
}
}
counterField.value=cc;
}
</script>
<form method=post name="sign_form">
<hr>
<input type="text" name="checks_selected_a" value="0" size="1" >
<input type="checkbox" name="a" value="1" onclick="check_counter(thi
<input type="checkbox" name="a" value="2" onclick="check_counter(thi
<input type="checkbox" name="a" value="3" onclick="check_counter(thi
<hr>
<input type="text" name="checks_selected_b" value="0" size="1" >
<input type="checkbox" name="a[15]" value="1" onclick="check_counter(thi
<input type="checkbox" name="a[10]" value="2" onclick="check_counter(thi
<input type="checkbox" name="a[21]" value="3" onclick="check_counter(thi
</form>
</body>
</html>
why not just this? Works for any case, also without names
==========================
<script>
var gcounter = 0;
function pm(obj)
{
obj.form.checks_selected.v
}
</script>
<form method=post name="sign_form">
<input type="checkbox" name="a[15]" value="1" onclick="pm(this);">
<input type="checkbox" name="a[10]" value="2" onclick="pm(this);">
<input type="checkbox" name="a[21]" value="3" onclick="pm(this);">
<INPUT type="text" name="checks_selected">
</form>
Business Accounts
Answer for Membership
by: mplungjanPosted on 2007-07-12 at 23:41:54ID: 19478628
function check_counter(theForm){
var kk = 0;
for(i=0;i<theForm.elements
var elem = theForm.elements[i];
if(elem.type=='checkbox' && elem.checked){
kk++;
}
}
document.sign_form.checks_
}
<input type="checkbox" name="a[21]" value="3" onclick="check_counter(thi
Michel