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jquery back to Top (Lite version)

Source: Internet
Author: User
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jquery back to Top (Lite version)

<!DOCTYPE HTML><HTMLLang= "en"><Head>    <MetaCharSet= "UTF-8">    <title>jquery Back to Top</title>    <style>*body{background-attachment:fixed;Background-image:URL (about:blank); /*required, anti-jitter*/}*body #toTop{position:Absolute;Top:expression (eval (document.documentelement.scrolltop+ DOCUMENT.DOCUMENTELEMENT.CLIENTHEIGHT-THIS.OFFSETHEIGHT-10)); /*Bottom Fixed suspension*/}#toTop{Display:None;position:fixed;Border:1px solid Red; Right:10px;Bottom:10px;padding:10px 0;cursor:Pointer;}    </style></Head><Bodystyle= "height:3000px;">    <DivID= "Totop">Scroll to Top</Div>        <Scriptsrc= "Http://apps.bdimg.com/libs/jquery/1.9.1/jquery.js"></Script>    <Script>    $(function(){        varTotop= $('#toTop'); //triggered when the window scroll bar scrolls$ (window). Scroll (function(){            varSt=$ (window). scrolltop (); //gets the distance that the browser window scrolls up                        //Tabs tab Bar/console debug Code            //document.title = $ (window). scrolltop ();            //Console.log ($ (window). scrolltop ());            //determine if the upward scrolling distance is greater than            if(St< -) {totop.fadeout ('Fast'); }Else{Totop.fadein ('Fast');        }        }); //triggered when a button is clickedTotop.click (function(){            $('html, Body'). Animate ({scrolltop:0            }, -); return false;    });    }); </Script></Body></HTML>

jquery back to Top (Lite version)

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