Client side message-box formatting function makeMessageBox works incorrectly.

When simple message-box is created with PHP, message path looks as follow:

output.msg-* > span > [text node]

But equal message made with javascript uses list:

output.msg-* > div.msg-details > ul > li > [text node] 

As the result, font-size in message-box looks smaller, because list items has additional CSS style:

font-size: 0.85em; 

As result, message looks smaller when made by javascript. This become a problem when we started to use message-boxes in main window.