[xsl] Check for text between two elements??

["Sameer N" <samooo_vc@xxxxxxxxxxx>]

I want to test if there is a text between two elements using XSLT.

I have some xml like this....
<AAA>There is this text <BBB> more text </BBB> text continues <CCC> still 
more text </CCC> and back to text </AAA>
or it can be like this
<AAA>There is this text <BBB> more text </BBB><CCC>still more text</CCC> and 
back to text </AAA>

Now, I want to test whether there is text present between tags <BBB> and 
<CCC>. Is this possible using XSLT?

Thanks.

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