jquery - Load javascript into div when user scroll position reaches it -


i want make script load div when user reaches it. trying accomplish using jquery, no success. maybe can help. here code:

var scrollfromtop = $("#float_div_id").offset().top;  $(document).scroll(function () {     if ($(this).scrolltop() > scrollfromtop) {         var s = document.createelement('script');         s.setattribute('type', 'text/javascript');         s.src = 'javascript code src want append on scroll';         document.getelementbyid('float_div_id').appendchild(s);     } });

in case, $(this).scrolltop() coming out lesser scrollfromtop.

change if condition , try again : 

if ($(this).scrolltop() + $(window).height()  > scrollfromtop)

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