broberts
2008-Feb-13 21:18 UTC
Element.focusFirstElement() causing issue with Element.addMethods()
Prototype 1.6.0.2
Internet Explorer 7
I''ve found that when I call
$(''myform'').focusFirstElement(); to set
focus on the first field in my form, that this statement "wrecks" the
extensions I''ve added using Element.addMethods() if it executes before
Element.addMethods().
When I try to call one of my exenstions, the IE7 JavaScript
interpreter throws an error as follows: "Object does not support this
property or method." It works fine in Firefox 2.x
Here''s an actual example...
<html>
<head>
<title>Simple Page</title>
<script src="prototype.js" type="text/javascript"
language="JavaScript"></script>
</head>
<body>
<form name="myform" id="myform">
<input type="text" name="myinput" id="myinput"
value="" size="10"
onclick="$(this).myCustomExtension();" />
</form>
<script type="text/javascript" language="JavaScript">
var myExtensions = {
myCustomExtension: function(element){
alert(''It\''s working!'');
}
}
// If this focusFirstElement() statement executes before the
subsequent Element.addMethods() statement, IE7 is
// unable to resolve the name of my extension
$(''myform'').focusFirstElement();
// This statement does NOT throw a JavaScript error, but when the
onclick event fires
// for ''myinput'', IE7 will not able to resolve the name of my
custom
extension and the
// javascript interpreter will throw an error
Element.addMethods(''input'', myExtensions);
</script>
</body>
</html>
Again, this only happens in Internet Explorer 7. In this simple
example, I can place the Element.addMethods() statement before the
focusFirstElement() and all is good, but it''s not so easy when all my
extensions are being loaded when the ''load'' event fires on the
window
object.
Has anyone else experienced this problem?
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