Searching PARTIAL attribute value of XML

I have gone thru the Kirupa’s tutorial “[COLOR=#003366]Using XML in Flash CS3/AS3[/COLOR]”, and it helped a lot in my project. Now, I have a question in XML searching. If an attribute’s value is say title=“kirupa tutorial” and a user wanted to search only the word “kirupa”, then how can i get this node of xml, which title is “kirupa tutorial”…

@[COLOR=#000050]title[/COLOR] [COLOR=#0000ff]==[/COLOR] [COLOR=#666666]“kirupa” only works when the whole word matches the value of “title” attribute, but i want to search a partial word.[/COLOR]
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