title: Check if xpath exist in my page
body: <p>I search a lot but never found what I want.</p>
  
  <p>I want to control if a xpath exist in the current page.</p>
  
  <p>I found with java/xml, php etc... But not only java.</p>
  
  <p>I search a simple way to check in the current page, if a xpath exist.</p>
  
  <p>Thank you.</p>
  
  <p>Regards.</p>