chatscroll.js

function getScrollY(){var t=undefined!==window.pageXOffset,e="CSS1Compat"===(document.compatMode||"");return t?window.pageYOffset:e?document.documentElement.scrollTop:document.body.scrollTop}function getHeight(){return undefined!==window.innerHeight?window.innerHeight:document.documentElement.clientHeight||document.body.clientHeight}function autoScroll(t,e){try{text=document.getElementById("text");bottom=document.getElementById("bottom");e=e?!reverse:reverse;if(t)e?bottom.scrollIntoView():text.scrollIntoView();else try{tw=text.clientHeight,sh=getHeight(),sy=getScrollY(),ph=document.body.scrollHeight,sy>ph-tw-sy&&text.scrollIntoView()}catch(t){text.scrollIntoView()}}catch(t){}}