Checking visibility of an element
5451
How do I check if an element is hidden in jQuery?
113905
How can I check whether a variable is defined in JavaScript?
111218
How can I use an action to determine a control's visibility?
154160
How do I write 'if not clicked' or 'if clicked outside element', using Jquery?
795
How to check if element is visible after scrolling?
103062
How do I check whether a checkbox is checked in jQuery?
33578
What is the difference between visibility:hidden and display:none?
144753
Equivalent of jQuery .hide() to set visibility: hidden
71062
How to get the name of an element with Javascript?
3338
Check browser CSS property support with JavaScript?
146642
Using an if statement to check if a div is empty
76324
Is there a css selector for selecting an element futherup in the html?
27983
How can I tell if a DOM element is visible in the current viewport?
22042
How can I check whether a radio button is selected with JavaScript?
145122
find elements with position:attribute
16015
jQuery event to trigger action when a div is made visible
118915
Get element CSS property (width/height) value as it was set (in percent/em/px/etc)