When the page is opened, the page automatically scrolls in a loop

<!-- http://www.downcodes.com/js --> <!-- bbs http://www.downcodes.com/bbs--> <!-- 完整的HTML代码 --> <script type="text/javascript"> //Enter domain of site to search. var domainroot="www.downcodes.com" function Gsitesearch(curobj){ curobj.q.value="site:"+domainroot+" "+curobj.qfront.value } </script> <form action="http://www.google.com/search" method="get" onSubmit="Gsitesearch(this)"> <p>Search downcodes.com:<br /> <input name="q" type="hidden" /> <input name="qfront" type="text" style="width: 180px" /> <input type="submit" value="Search" /></p> </form> <br><br><br> <p><font color=red>//网站:http://www.downcodes.com</font></p>