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