jquery return top floating Icon implementation code

Code is simple to use, just put the HTML code, and jquery code into the end of the page. In addition, you may also need to use the same as me to steal Renren back to the top of a picture.

HTML code

<div style= "Display:none" class= "back-to" id= "Toolbacktop" >

<a title= "returns to the top" onclick= "Window.scrollto (0,0); return false; href=" #top "class=" Back-top ">

Back to top </a>

</div>

jquery Code

The code is as follows

Copy Code

<script src= "Js/jquery.min.js" type= "Text/javascript" ></script> <script type= "Text/javascript" > $ (document). Ready (function () { var bt = $ (' #toolBackTop '); var SW = $ (document.body) [0].clientwidth; var limitsw = (sw-840)/2-80; if (Limitsw > 0) { LIMITSW = parseint (LIMITSW); Bt.css ("Right", LIMITSW); } $ (window). Scroll (function () { var st = $ (window). scrolltop (); if (St > 30) { Bt.show (); }else{ Bt.hide (); } }); }) </script>