Problem with tooltip. how can i fix this bug?

[sashaiel]

Hi guys.
please take a look to this site : http://www.spacescientific.com
when mouse cursor cross over links , template will show Article intro in a Tooltip box.
Now problem is if there be a " " in article title, tooltip just not working.
please take a look to these pics to understand what I mean :

without " " in title : http://www.spacescientific.com/x1.jpg
with " " in title : http://www.spacescientific.com/x2.jpg

I can't remove "" from titles because they are many articles like this.
so any Idea how to fix tooltip please????