chrome/test/webdriver/test/iframe_src.html - platform/external/chromium_org - Git at Google

 <html>
 <script>
 var success = false;
 function succeed() {
   success = true;
 }
 </script>
 <div style="height:100px; overflow:scroll">
   <br><br><br><br><br><br><br><br><br>
   <a name="hidden_scroll" onclick="javascript:succeed()">Click Here</a>
 </div>
 </html>
	<html>
	<script>
	var success = false;
	function succeed() {
	success = true;
	}
	</script>
	<div style="height:100px; overflow:scroll">
	<br><br><br><br><br><br><br><br><br>
	<a name="hidden_scroll" onclick="javascript:succeed()">Click Here</a>
	</div>
	</html>