title: XSLT: can we use abs value?
body: <p>I would like to know if in XLST can we use the math:abs(...) ?
  I saw this somewhere but it does not work .
  I have something like:</p>
  
  <pre><code>&lt;tag&gt;
    &lt;xsl:value-of select="./product/blablaPath"/&gt;
  &lt;/tag&gt;
  </code></pre>
  
  <p>I tried to do something like:</p>
  
  <pre><code>&lt;tag&gt;
    &lt;xsl:value-of select="math:abs(./product/blablaPath)"/&gt;
  &lt;/tag&gt;
  </code></pre>
  
  <p>but does not work.  I'm using java 1.6 language.</p>