1. I have code to show tip like:
<a class="notvisible" onclick="mytip.disable();" href="javascript:void(0);">Close</a>
How is correct Javascript code to Close this tip when clicked?

2. How to move next news feed with click on arror icon and back icon?
<a onclick="mynews.previous();" href="javascript:void(0);">Previous</a> <a onclick="mynews.next();" href="javascript:void(0);">Next</a>

How is correct Javascript code to move news item next and prevoius news?
when clicked?
<script type="text/javascript">