title: GPS accuracy in HTML5
body: <p>As part of my diploma project I faced with with a problem of getting GPS coordinates. 
  I have developed a program with JavaScript and HTML5 that gets coordinates from browser.</p>
  
  <p>But the accuracy of the position is very low. I use a method <code>watchPosition()</code> with timeout:<code>1000</code></p>
  
  <p>So here is my observation:</p>
  
  <ol>
  <li>I run a HTML5 app on iPhone, and accuracy begins falling. (from 150 to 1500 meters)</li>
  <li>Then I run a native app with maps on iPhone, like google maps, than I wait until it found my position.</li>
  <li>Then I go to my HTML5 app in browser.</li>
  </ol>
  
  <p>And now the accuracy is higher than it was (about 5-10 meters). 
  What has happend? And how do I make the accuray high as it is now without running third-party apps?</p>