Mega Code Archive
Form length
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The length property represents the number of elements within a form.
This property works the same as the elements.length property.
<html>
<head>
<title> Using the length property of the Form object</title>
</head>
<body>
<script language="JavaScript">
<!--
function showNumElements(){
alert("There are " + document.form1.length + " elements in this document");
}
-->
</script>
<form name="form1">
Enter First Name:
<input type="text" size=15><br>
Enter Last Name:
<input type="text" size=20><br>
Enter address:
<input type="text" size=40><br><br>
<input type="button" value="Submit" onClick=showNumElements()>
</form>
</body>
</html>
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