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By: a guest on Sep 11th, 2012  |  syntax: JavaScript  |  size: 0.81 KB  |  views: 19  |  expires: Never
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  1.         <script type="text/javascript">
  2.             (function(doc) {
  3.  
  4.                 var addEvent = 'addEventListener',
  5.                     type = 'gesturestart',
  6.                     qsa = 'querySelectorAll',
  7.                     scales = [1, 1],
  8.                     meta = qsa in doc ? doc[qsa]('meta[name=viewport]') : [];
  9.  
  10.                 function fix() {
  11.                     meta.content = 'width=device-width,minimum-scale=' + scales[0] + ',maximum-scale=' + scales[1];
  12.                     doc.removeEventListener(type, fix, true);
  13.                 }
  14.  
  15.                 if ((meta = meta[meta.length - 1]) && addEvent in doc) {
  16.                     fix();
  17.                     scales = [.25, 1.6];
  18.                     doc[addEvent](type, fix, true);
  19.                 }
  20.  
  21.             }(document));
  22.         </script>
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