IE6 issue regarding Wicket JS and Ajax

[Martin Asenov]

Hello, everyone!
I just noticed that my DatePicker doesn't work in IE6 - it doesn't even get 
displayed on mouse click. Also, when I close a modal window, the mask isn't 
hidden and the underlying page is not intractable, so I'm forced to refresh the 
whole page.
Also, ajax components update cause some screen flickering and misplacing some 
components (images, dropdown choices, etc.)
All problems occur in IE6.
Any ideas?
Best,