Automatic scrolling window java script

Copy the Below Code and Paste it in HTML in Blogger post anywhere
<!-- this script got from my-javacodes.blogspot.com coded by: Morad Hasan--> <script language="JavaScript1.2"> var speed=1 function iecompattest(){function scrollwindow(){ var currentpos=0,alt=1,curpos1=0,curpos2=-1 function initialize(){ startit() } return (document.compatMode!="BackCompat")? document.documentElement : document.body } if (document.all) temp=iecompattest().scrollTop else temp=window.pageYOffset if (alt==0) alt=1 else alt=0 if (alt==0) curpos1=temp else curpos2=temp if (curpos1!=curpos2){ if (document.all) currentpos=iecompattest().scrollTop+speed else currentpos=window.pageYOffset+speed window.scroll(0,currentpos) } else{ currentpos=0 window.scroll(0,currentpos) } } function startit(){ setInterval("scrollwindow()",10) } window.onload=initialize </script> <font face="Tahoma"><a target="_blank" href="http://my-javacodes.blogspot.com/"><span style="font-size: 8pt; text-decoration: none">JavaScript Code</span></a></font>