Project Detail
Javascript tweak
Javascript tweak is project number 381262
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Bid Count: 25
Average Bid:
$ 31
02/08/2009 at 3:19 EST
Project Creator:
ojoonline
Employer Rating: 
(5 reviews)
Description
Hi,I have two javascript scripts that work perfectly independently but now I am trying to add them to the same form.
Function 1: Limits the number of checkboxes that can be selected to 8 (example only). An alert says when the user tries to go over the limit.
Function 2: A 'Select all' checkbox that selects all in the group. But when the selected group has more than 8 an error is called.
This is what I have so far:
<script type="text/javascript" language="javascript">
function enough(limit, validate) {
var el, msg = '', howmany = 0;
for (var i=0; i<document.forms[0].elements.length; ++i) {
el = document.forms[0].elements[i];
if (el.type == 'checkbox' && el.checked) ++howmany;
}
msg +=
(howmany>limit) ?
'Maximum of ' + limit + ' contacts can be selected. Please use lists to send to more.' :
'';
if (msg) {
alert(msg);
return false;
}
return true;
}
</script>
<script>
function toggle(theDiv) {
var elem = document.getElementById(theDiv);
elem.style.display = (elem.style.display == "none")?"":"none";
}
function CkAllNone(obj,id){
var tbs=document.getElementById(id).getElementsByTagName('INPUT');
for (var zxc0=0;zxc0<tbs.length;zxc0++){
tbs[zxc0].checked=obj.checked;
}
}
//-->
</script>
</head>
<body>
<form action="sendmessage.htm" method="post" id="sendform" name="sendform" onSubmit="return enough(8, true)">
<input type="checkbox" name="ABID" onclick="return enough(8)">1<br>
<input type="checkbox" name="ABID" onClick="return enough(8)">2<br>
<input type="checkbox" name="ABID" onClick="return enough(8)">3<br>
<input type="checkbox" name="ABID" onClick="return enough(8)">4<br>
<input type="checkbox" name="ABID" onClick="return enough(8)">5<br>
<input type="checkbox" name="ABID" onClick="return enough(8)">6<br>
<input type="checkbox" name="ABID" onClick="return enough(8)">7<br>
<input type="checkbox" name="ABID" onClick="return enough(8)">8<br>
<input type="checkbox" name="ABID" onClick="return enough(8)">9<br>
<input type="checkbox" name="ABID" onClick="return enough(8)">10<br>
<input type="checkbox" name="selectAll" value="checkbox" onClick="CkAllNone(this,'sendform');" > Select all
<br><br>
<input type="submit">
</form>
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