MediaWiki:Common.js

$(function () {

  var myElement = document.getElementById('mw-coords-form');
  myElement.innerHTML = '
<form name="myForm" action="/action_page.php" onsubmit="return validateForm()" method="post">
Name: <input type="text" name="fname">
<input type="submit" value="Submit">
</form>
';

}());