That was quick!!!  Thanks for the info Dimitre.  :-)

Dimitre Novatchev wrote:
> Read about and use the substring function.
> 
> Cheers,
> Dimitre Novatchev.
> 
> 
> "Roshawn Dawson" <udrago@b...> wrote in message 
> news:er$sjE7ZFHA.2308@T......
> 
>>Hi,
>>
>>In my books.xml file, each book has a price node that contains other 
>>nodes.  It looks like this:
>>
>><books>
>> <book>
>>  <title>Some Title</title>
>>  <author>One Author</author>
>>  <author>Another Author</author>
>>  <listprice>
>>   <amount>1726</amount>
>>   <formattedprice>$17.26</formattedprice>
>>  </listprice>
>>  <ourprice>
>>   <amount>1531</amount>
>>   <formattedprice>$15.31</formattedprice>
>>  </ourprice>
>> </book>
>> <!-- other book nodes go here -->
>></books>
>>
>>What I'd like to do is subtract the formattedprice node of ourprice from 
>>the formattedprice node of listprice to get the difference.  This is what 
>>I'm aiming for:
>>
>><xsl:value-of select="books/book/listprice/formattedprice - 
>>books/book/ourprice/formattedprice"/>
>>
>>However, the result I get is NaN.  After checking thing out, the problem 
>>is that the data for each formattedprice begins with the "$" character. Is 
>>there a way that I can remove that character so that I get the desired 
>>data?
>>
>>Thanks,
>>Roshawn 
> 
> 
>