Counting checkboxes?

[Hartmann]

How could I count how many checkboxes are checked? There are around 100 checkboxes and I don't want the user to check more than 10.
Thanks,

[Arielladog]

Hey Hartmann,

Try something like this:

<script>
var number=0;
function checkit(){
number=0;
for(j=0;j<document.forms[0].elements.length;j++){
if(document.forms[0].elements[j].type=="checkbox" && document.forms[0].elements[j].checked==true){
number++;
}}
if(number>10){
alert('You\'ve checked more than 10 checkboxes.  Only check ten');
}}
</script>

Hope that helps,
aDog

[Arielladog]

Did this help you?

[Hartmann]

Worked like a charm! Many thanks!!

[Arielladog]

Great, just remember to add to my karma

aDog

[Hartmann]

I gave you some the day you replied...