.is(':visible')
//Selects all elements that are visible.
if($('#yourDiv').is(':visible')){
//do stuff in here
}
//or
$('#yourDiv:visible').callYourFunction();.is(':visible')
//Selects all elements that are visible.
if($('#Div').is(':visible')){
// add whatever code you want to run here.
}
$('#yourDiv:visible').callYourFunction();$('.eipC:visible').length
//or
$('.eipC').is(':visible').length
$.fn.isInViewport = function() {var elementTop = $(this).offset().top;var elementBottom = elementTop + $(this).outerHeight();var viewportTop = $(window).scrollTop();var viewportBottom = viewportTop + $(window).height();return elementBottom > viewportTop && elementTop < viewportBottom;};