Hi,
I have a listbar that behaves very sluggishly when there are many panels/controls on a page. This problem only occurs in Internet Explorer, the response is fine in FireFox.
To illustrate please check this link in IE and FireFox. In IE the mouse hover behaviour is much slower.http://www.peppersoft.co.za/default.aspx
Does anyone have any ideas what I can check to improve the response in Ie.
Thanks rcrespin you pointed me in the right direction.
My original web site was only for Internet Explorer because of various issues surrounding the "height" attribute I had set the doctype as <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">. When you mentioned it didn't work nice in FireFox I redid the layout with doctype <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> and guess what. The sluggishness went away.
Unforutnately IE browsers in general (and especially IE6) are much slower than FireFox, especially when it comes to interpreting javascript/DHTML. There are many references and test that show that, for example:
http://ajaxian.com/archives/ie7-twice-as-performant-as-ie6-but-half-as-slow-as-ff-15
http://www.zimbra.com/blog/archives/2006/10/ie_7_a_better_b.html
and while we do our best to optimize our performance, a lot of it relies on the browsers hosting the controls.
I don't have an answer for you, but for me on Firefox, the list bar moves down the page when I click on a section: