http://livedocs.adobe.com/ Macromedia LiveDocs - online documentation with user feedback. Copyright 2009, Macromedia, Inc. 2009-11-26T00:24:35 en-us http://livedocs.adobe.com/coldfusion/6/CFML_Reference/functions-pt299.htm#744 The documentation indicates that <br>isDefined(form.value)<br>is equivalent to <br>StructKeyExists(form, "value")<br><br>however, isDefined throws an error saying "Value is undefined in form."<br><br>and I'm thinking, well... duh, that's what I'm testing for. StructKeyExists() appears to do what ParameterExists() used to do.<br><br>How are these functions "equivalent" and why are they different? alesha 0 0 2002-11-13T18:04:00