Select within a tag
Description
The following code shows how to select within a tag.
It finds radio button within the first form.
Example
<html>
<head>
<script
src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {<!--from ww w .j a v a2s . c o m-->
var c = $("input:radio", document.forms[0]).length;
alert(c);
});
</script>
</head>
<body>
<form>
<input type="radio" value="Option">
</form>
<form>
<input type="radio" value="Option">
</form>
<form>
<input type="radio" value="Option">
</form>
</body>
</html>