IE msXML scripting Q on searach

This is within IE 5.5, MSxml 3.1, trying to use JS to script actions for an
xml file.

I have this line...

    if ( currNode.text.search(searchStr) != -1)
    {
       ...
    }

which looks in the given node to see if the passed in string (searchStr) is
in this NODE.

Works fine, but...

How do I make this case-insensitive?

Or, how do I force it to look at the NODE text in lower case, since I can
force 'searchStr' to lower case?

Thanks

Walter


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