jquery - get elements that is in viewport -

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what wanted visible elements within viewport respect parent container. checking triggered via , animated scrolling of parent.

i have found codes here, functions can check if element in viewport somehow not right.

here's current function checks if it's in viewport or not.

function  checkinview(elem,partial) { var container = $("#timeline_wrapper"); var contheight = container.height(); var conttop = container.scrolltop(); var contbottom = conttop + contheight ;  var elemtop = $(elem).offset().top - container.offset().top; var elembottom = elemtop + $(elem).height();  var istotal = (elemtop >= 0 && elembottom <=contheight); var ispart = ((elemtop < 0 && elembottom > 0 ) || (elemtop > 0 && elemtop <= container.height())) && partial ;  return  istotal  || ispart ; }

and here's fiddle of complete set i'm trying make : http://jsfiddle.net/j3toxicat3d/zrncu/


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