javascript - body.scrollTop is not working in firefox and IE When inside Blogger -


here javascript. working in chrome not working in firefox , ie when inside blogger

if (document.body.scrolltop > 5) {           var header = document.getelementsbyclassname("header")[0];           header.classname = "header down" }

and have trie it

if (document.getelementsbytagname('body')[0].scrolltop > 5) {           var header = document.getelementsbyclassname("header")[0];           header.classname = "header down"         }

please tell how work in firefox , ie. please javascript , no j query.

i've had @ website javascript , can see in ie , firefox, document.body.scrolltop 0. see document.body.scrolltop 0 in ie when scrolling.

therefore, down never added header div. need use combination of document.body.scrolltop or document.documentelement.scrolltop depending on browser in use.


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