javascript - Fixed scrolling div refusing to stick in IE -


i have following code have div sticks after it's scrolled. works in modern browsers except ie (8, 9 or 10).

any quick fixes? appreciated.

<script> //turns sidebar fixed scrolling var header = document.queryselector('.stickysidebar'); var origoffsety = header.offsettop;  function onscroll(e) {   window.scrolly >= origoffsety ? header.classlist.add('sticky') :                               header.classlist.remove('sticky'); }  document.addeventlistener('scroll', onscroll); </script>

ie 8 not support addeventlistener, must use attachevent (see: https://developer.mozilla.org/en-us/docs/web/api/eventtarget.addeventlistener#compatibility)

an example work around (modified mdn page):

if (el.addeventlistener) {   el.addeventlistener('scroll', onscroll);  } else if (el.attachevent)  {   el.attachevent('onscroll', onscroll); }

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