pluto portal css/js issues

All,

I'm going to attempt to quickly fix the open Jira's on the Pluto portal 
view.  I think these are both browser compat bugs.

PLUTO-186 	 ToolTips to Portlet Controls
PLUTO-341 	 Page Admin Portlet does not work with Internet Explorer ver 6

At the same time, what do you think about replacing the Javascript 
navigation drop-down with something more palatable like CSS based tabs, 
or a select box?  I've already got a patch for this in my working copy.

These are simple fixes which I think will make the portal a little 
easier to work with as developers are testing and deploying their portlets.

Elliot