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+<!DOCTYPE HTML>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=274626
+-->
+<head>
+  <title>Test for Bug 274626</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script src="/tests/SimpleTest/EventUtils.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=274626">Mozilla Bug 274626</a>
+<br>
+
+<input id='textbox_enabled' title='hello' value='hello' />
+<input id='textbox_disabled' title='hello' value='hello' disabled/>
+
+<br>
+<input id='input_button_enabled' title='hello' value='hello' type='button' />
+<input id='input_button_disabled' title='hello' value='hello' type='button' disabled />
+
+<br>
+<input id='checkbox_enabled' title='hello' type='checkbox'>hello</input>
+<input id='checkbox_disabled' title='hello' type='checkbox' disabled >hello</input>
+
+<br>
+<button id='button_enabled' title='hello' value='hello' type='button'>test</button>
+<button id='button_disabled' title='hello' value='hello' type='button' disabled>test</button>
+
+<br>
+<textarea id='textarea_enabled' title='hello' value='hello' onclick="alert('click event');"> </textarea>
+<textarea id='textarea_disabled' title='hello' value='hello' onclick="alert('click event');" disabled></textarea>
+
+
+<br>
+<select id='select_enabled' title='hello' onclick="alert('click event');">
+  <option value='item1'>item1</option>
+  <option value='item2'>item2</option>
+</select>
+<select id='select_disabled' title='hello' onclick="alert('click event');" disabled>
+  <option value='item1'>item1</option>
+  <option value='item2'>item2</option>
+</select>
+
+<br>
+<form>
+  <fieldset id='fieldset_enabled' title='hello' onclick="alert('click event');">
+    <legend>Enabled fieldset:</legend>
+    Name: <input type='text' size='30' /><br />
+    Email: <input type='text' size='30' /><br />
+    Date of birth: <input type='text' size='10' />
+  </fieldset>
+</form>
+<form>
+  <fieldset id='fieldset_disabled' title='hello' onclick="alert('click event');" disabled>
+    <legend>Disabled fieldset:</legend>
+    Name: <input type='text' size='30' /><br />
+    Email: <input type='text' size='30' /><br />
+    Date of birth: <input type='text' size='10' />
+  </fieldset>
+</form>
+
+<script class="testbody" type="application/javascript">
+
+/** Test for Bug 274626 **/
+
+  function HandlesMouseMove(evt) { 
+	evt.target.handlesMouseMove = true;
+  }
+
+  var controls=["textbox_enabled","textbox_disabled",
+    "input_button_enabled", "input_button_disabled", "checkbox_enabled", 
+    "checkbox_disabled", "button_enabled", "button_disabled",
+    "textarea_enabled", "textarea_disabled", "select_enabled", 
+    "select_disabled", "fieldset_enabled", "fieldset_disabled"];
+
+  for (id of controls) {
+    var ctrl = document.getElementById(id);
+    ctrl.addEventListener('mousemove', HandlesMouseMove);
+    ctrl.handlesMouseMove = false;
+    var evt = document.createEvent("MouseEvents");
+    evt.initMouseEvent("mousemove", true, true, window,
+      0, 0, 0, 0, 0, false, false, false, false, 0, null);
+    ctrl.dispatchEvent(evt);
+
+    // Mouse move events are what causes tooltips to show up. 
+    // Before this fix we would not allow mouse move events to go through
+    // which in turn did not allow tooltips to be displayed.
+    // This test will ensure that all HTML elements handle mouse move events
+    // so that tooltips can be displayed
+    ok(ctrl.handlesMouseMove, "Disabled element need mouse move for tooltips");
+  }
+
+</script>
+</body>
+</html>