title: XSLT the prefix xsl for element is not bound
body: <p>I have an xml generated by a webservice based on openerp, it contains a prefix pp for many elements. I want to convert that xml file to another xml using xslt by selecting many elements.
  When i try to execute the transformation, it shows me the error 'the prefix xsl for element is not bound' for the prefix pp.
  I can't declare pp as it is described in many answers, how I can ignore the use of that prefix?</p>