CCNA, CCNP, MCSA, CCNA Final Exam, All Answer Test Module With 100/100

In jQuery, suppose you have an element of some kind that you're hiding and showing, using .hide() , .show() or .toggle() . How do you test to see if that element is currently hidden or visible on the screen?

I have a UL and I'm working to dynamically add a new LI to the top of the UL with some animation.

Currently I am using jQuery to hide/show select options using following code. $("#custcol7 option[value=" + sizeValue + "]").hide(); This works fine in Firefox, but doesnt do any good in other browsers. How to I hide options from select in Chrome, Opera and IE? Source: Tips4all