title: How to capture only part of an id?
body: <p>I'm trying to capture the id of an element that will be randomly generated. I can successfully capture the value of my element id like this...</p>
  
  <pre><code>| storeAttribute | //div[1]@id | variableName |
  </code></pre>
  
  <p>Now my variable will be something like...</p>
  
  <pre><code>divElement-12345
  </code></pre>
  
  <p>I want to remove 'divElement-' so that the variable I am left with is '12345' so that I can use it later to select the 'form-12345' element associated with it...something like this:</p>
  
  <pre><code>| type | //tr[@id='form-${variableName}']/td/form/fieldset/p[1]/input | Type this |
  </code></pre>
  
  <p>How might I be able to accomplish this?</p>