title: Can jQuery/js help me determine if an URL exists
body: <p>I can't figure out wheater or not, jQuery/Ajax can help me determine if a given URL is online.</p>
  
  <p>What I really is looking for is the HTTP status code of a http connnection to the URL, but it may be too much to ask?</p>
  
  <p>The urls are user input, and thus it is not possible for me to modify the environment on the server I am connecting to.</p>
  
  <p>Every help is more than welcome.</p>