javascript - Scriptaculous problem in IE -

We have a very troubling problem with Scriptaculous and Internet Explorer 7/8, we have two on the same page, But only one of them is doing the job (the first one). I hope this is a few simple mistakes in my implementation, but I can not find any decent documents. Hope anyone can help here.

HTML / JS looks like this:

  & lt; Ul & gt; & Lt; Li id = "linkA" square = "icon" & gt; & Lt; An onclick = "new effect" toggle ('diva', 'slide', {duration: 0.6}); return false; " Href = "#" & gt; Show A & lt; / A & gt; & Lt; / Li & gt; & Lt; / Ul & gt; & Lt; Div id = "divA" style = "display: none" & gt; & Lt; Div & gt; - Things to display - & lt; / Div & gt; & Lt; / Div & gt; & Lt; Ul & gt; & Lt; Li id = "linkb" class = "icon" & gt; & Lt; An onclick = "new effect" toggle ('divB', 'slide', {duration: 0.6}); return back; " Href = "#" & gt; Show list B & lt; / A & gt; & Lt; / Li & gt; & Lt; / Ul & gt; & Lt; Div id = "divB" style = "display: none" & gt; & Lt; Div & gt; - Things to display - & lt; / Div & gt; & Lt; / Div & gt;  

It works perfectly in Chrome and Firefox, but no one else ever works in IE 7 or 8, no matter what.

Any help would be greatly appreciated!