title: How to allow Scandinavic characters in a checkbox using regex?
body: <p>How to allow Scandinavic characters in a textbox using regex?
  I have used the following code. But it does not allow the characters such as <code>ä</code> or <code>ö</code></p>
  
  <pre><code>var charexp = /^[a-zA-ZäöüÄÖÜ ]+$/;
  if(!charexp.test(cus_fname))
  {
      $("#cus_fname_div").html("Only characters are allowed.");
  }
  </code></pre>
  
  <p>Please help.</p>