Searching a word from XML Document Using DOM

[wxdqz]

Hi,Here I would like to know abt How to search a single word form a XML Documentusing DOM?If the following is the Element in a XML Document.<HeadNode>Here I am Going To Ask</HeadNode>I would like to get "Going" From this <HeadNode> using DOM'sSelectNodes method.And also I would like to know more about Search engine creation using XML.I welcome people who has prior knowledge in this for discussion.thanking youvedha