At first I thought this was a cross-browser issue of Prototype when
Form.Element.present() used on a select box returned "true" on Firefox
but not on IE when a non-empty OPTION field was selected.
Later then, I realized that this method was in fact just meant for
text inputs (as clearly stated in the documentation: "Returns true if
a text input has contents, false otherwise.").
Still, I think it would be nice to have the functionality of the
Form.Element.present method extended so that the following example
would work on all browsers the way I thought it would at first
("false" when no or the empty option is selected, "true" otherwise):
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>Test</title>
<script type="text/javascript" src="prototype.js"></script>
<script type="text/javascript">
document.observe("dom:loaded", function () {
$("mySelect").observe("change", function () {
alert($("mySelect").present() ? "select set" : "select not
set")
});
});
</script>
</head>
<body>
<select id="mySelect">
<option></option>
<option>test</option>
</select>
</body>
</html>
What do you think?
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