Tip: you can modify some code before running
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Returns the Top effect based on jQuery.</title></head><body><style type="text/css">/* Return to the top */# roll_top {position: relative; margin-bottom: 1px; cursor: pointer; height: 60px; width: 60px; display: block; background: # ddd ;}# roll_top: hover {background: #666 ;}# roll {width: 60px; position: fixed; right: 30px; bottom: 50px; _ position: absolute; _ margin-top: 300px; _ bottom: auto; _ top: expression(eval(document.documentelement.scrolltop#document.doc umentElement. clientHeight-40-this.offsetHeight-(parseInt (this. currentStyle. marginTop, 10) | 0)-(parseInt (this. currentStyle. marginBottom, 10) | 0 )));}</style><p align="right">1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br />1111<br /></p><div id="roll"> </i> </div><script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script><script type="text/javascript">JQuery (function () {/* return to the top and contact customer service */var jq = jQuery; jq ('# roll_top '). hide (); jq (window ). scroll (function () {if (jq (window ). scrollTop ()> 0) {jq ('# roll_top '). fadeIn (400); // The time when the slider slides down.} else {jq ('# roll_top '). fadeOut (200); // The time when the button fades back to the first screen on the top}); jq ('# roll_top '). click (function () {jq ('HTML, body '). animate ({scrollTop: '0px '}, 200); // return the time used at the top });});</script></body></html></td> </tr></table>
Tip: you can modify some code before running
