Thank you for your quick answer. But unfortunately that what you recommend does not work. Even if I create first the <div> with all calendar content and then I convert the div to a jqxPanel the IE takes very long until the result is displayed and hangs up if you scroll. All other browsers work fine.
It seems so that the problem occurs if a jqxPanel with big html content is displayed with IE.
No matter if the jqxPanel is created first and then filled witch content or vice versa.