MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */
$(document).ready(function() {
  $(document).keydown(function(e) {
    switch(e.which) {
      case 37: // left
        if ($('a[rel="prev"]').length > 0) {
          $('a[rel="prev"]')[0].click();
          e.preventDefault(); // prevent the default action (scroll / move caret)
        }
        break;

      case 39: // right
        if ($('a[rel="next"]').length > 0) {
          $('a[rel="next"]')[0].click();
          e.preventDefault(); // prevent the default action (scroll / move caret)
        }
        break;
     default: return; // exit this handler for other keys
    }
  });
});