I know it's not defined ... that's the problem

[Howard Owens]

I'm still working on my Amazon AWS application.

Got one query working, now I want to reuse some code.

But the new query doesn't return quite the same results set XML.

So for SalesRank, I run into an "undefined" error, so I thought I'd try the 
following, but it returns the same error ... how do I test for whether an 
element is there, and skip it if it isn't?

if(IsDefined(AmazonXML.ItemSearchResponse.Items.Item[i].SalesRank.XmlText)) {
                Book.SalesRank = 
AmazonXML.ItemSearchResponse.Items.Item[i].SalesRank.XmlText;
        }
else {
                Book.SalesRank = '';
        }


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