title: How to illustrate multigraphs in Javascript?
body: <p>This question is looking for a practical and easy way for drawing multigraphs using Javascript.</p>
  <p>First of all look at <a href="https://stackoverflow.com/questions/7034/graph-visualization-code-in-javascript">this</a> question. None of those libraries support <a href="http://en.wikipedia.org/wiki/Multigraph" rel="nofollow noreferrer">Multigraphs</a> (or Pseudographs ). I mean I can't generate graphs like this:</p>
  <p><img src="https://i.stack.imgur.com/gc2MY.png" alt="Some Multigraph" /></p>
  <p>Is there any jQuery plugin (or javascript library) out there for this purpose ?</p>
  <p>I thought i can use <a href="http://products.wolframalpha.com/api/" rel="nofollow noreferrer">WolframAlpha's API</a> and use its images, something like <a href="http://www.wolframalpha.com/input/?i=1-%3E2%202-%3E3%203-%3E4%204-%3E5%201-%3E6%202-%3E6%202-%3E6%202-%3E6%201-%3E2%203-%3E3%203-%3E6%204-%3E4%20graph" rel="nofollow noreferrer">this</a>:</p>
  <p><img src="https://i.stack.imgur.com/Wbzsh.gif" alt="enter image description here" /></p>
  <p>but it have lots of problem:</p>
  <ol>
  <li><p>I can't move nodes or add remove edges interactively.</p>
  </li>
  <li><p>Only 2000 API calls per month. Not enough.</p>
  </li>
  <li><p>I can't produce large or intermediate graphs.</p>
  </li>
  <li><p>They are really ugly!</p>
  </li>
  </ol>
  <p>Please help me if you know some javascript library in order to draw Multigraphs, or anyway to produce such graphs (something like <a href="http://www.graphdracula.net/" rel="nofollow noreferrer">Dracula Graph Library</a> but with ability to draw Multigraphs).</p>