How can I navigate the DOM for the contents of an XML object

[pirata_web]

I have an XML file, and I would like to extract the contents of a tag called \[code\]issueId\[/code\]. I have tried\[code\]alert(myXML.getElementsByTagName("issueId")[0]);\[/code\]and I get a box saying \[code\][object element]\[/code\]I also tried I however cannot extract the data "12345" itself! I have tried \[code\]alert(myXML.getElementsByTagName("issueId")[0].nodeValue);\[/code\]and I get "null". How can I just get the contents of this object?