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Click to See Complete Forum and Search --> : Limit checkboxes being checked

rjra2
07-03-2003, 01:30 PM
I have 4 checkboxes in a formand i want to allow users to check any 2 of them not all 4. I just learning JavaScript and could use some real help with this.
Thanks
Jona
07-03-2003, 02:24 PM
<script type='text/javascript'>
<!-- // Untested code
function calc(){
var chkd;
var count = 0;
for(i=1; i<document.myForm.elements.length; i++){
if(document.myForm.elements[i].type=="checkbox" && document.myForm.elements[i].checked==true){
count+=1;
}
if(count>2){alert("Check only one, please."); return false;}
}
//-->
</script></head>
<body>
<form action="" name="myForm" onsubmit="return calc();"><div>
<input type="checkbox" name="c1"><br>
<input type="checkbox" name="c2"><br>
<input type="checkbox" name="c3"><br>
<input type="checkbox" name="c4"><br>
<input type="submit" value="Submit">
</div></form>
</body></html>


[J]ona