滚动仅触发一次

Question

I have a javascript file I am using to align a single absolute div to always be inline with the horizontal scroll position.

I can't figure out what's not working with my code - onscroll seems to fire once and then never fire again in both internet explorer and firefox.

Anyone have any ideas? I've been looking this up for a bit and I can't figured out the error. (I have tried both onscroll += and onscroll =, neither work). That 39 offset is just to make sure the script fired until I get it to work.

 window.onload=scrollSet; function scrollSet(){ window.onscroll += KeepLeftAtScroll(); } function KeepLeftAtScroll(){ var ele=document.getElementById("topAboveMenuMargin"); if (ele != null){ ele.style.left = 39+ document.documentElement.scrollLeft; } } 

Answer 1

Fixed the issue. Apparently javascript does not like seperating assignement and declaration, as

 window.onscroll = function KeepLeftAtScroll(){ var ele=document.getElementById("topAboveMenuMargin"); if (ele != null) { ele.style.left = window.pageXOffset; } } 

works and does what I want it to. It didn't seem to like "window.onscroll = KLAS()" but was ok with "window.onscroll = function KLAS(){}". I originally did the onload portion since I wasn't originally checking for null on my element and did it that way to get around that issue.

Either way, it seems solved. Thanks for all the help all.