title: Get the end of string with Javascript
body: <p>I am storing a string (url) in a variable
  it can look like one/two/three/test.aspx?ID=12312
  I want to extract the querystring value, not from window.location but from the html</p>
  
  <p>I thought I could use substring and write</p>
  
  <pre><code>var link = ($(this).find('a').attr('href')); 
  var qs = link.substring( link.indexOf("="),  text.indexOf(" ") )
  </code></pre>
  
  <p>but it returns the string before the = and not after.</p>
  
  <p>What am I doing wrong?
  Thanks in advance.</p>