Jquery add class on page view -

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i have added 

function isscrolledintoview(elem) {     var docviewtop = jquery(window).scrolltop();     var docviewbottom = docviewtop + jquery(window).height();      var elemtop = jquery(elem).offset().top;     var elembottom = elemtop + jquery(elem).height();      return ((elembottom <= docviewbottom) && (elemtop >= docviewtop)); }

window.scroll

jquery(window).scroll(function(){      if (isscrolledintoview('h2') === true) {         jquery('h2').addclass('in-view')     }     else {jquery('h2').removeclass('in-view')     } });

the problem classes added , removed when top h2 on page visible. each h2 triggered when each individual 1 enters browser window.

please forgive me, new javascript.

since it's working first h2, can use .each repeat other h2 elements:

jquery(window).scroll(function(){     $("h2").each(function() {         if (isscrolledintoview(this) === true) {             jquery(this).addclass('in-view')         }         else {             jquery(this).removeclass('in-view')         }     }); });

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