Olá amores,hoje vim trazer um tutorial mega fácil para vocês,como colocar botão volta ao topo no blog,sabe porque ele é tão útil?
Porque auxilia o leitor a voltar para o começo da página sem precisar ficar subindo pelo mouse,ele só clica na imagem e pronto,já está de volta ao topo.

Quer fazer?Então segue o tuto aqui :D

Peguei esse tutorial lá no blog Papo Garota,mas modifiquei um pouquinho ;)


Vá em Layout>Adicionar Gadget>HTML/Java Script e cole o código abaixo

var scrolltotop={

//startline: Integer. Number of pixels from top of doc scrollbar is scrolled before showing control

//scrollto: Keyword (Integer, or "Scroll_to_Element_ID"). How far to scroll document up when control is clicked on (1=top).

setting: {startline:100, scrollto: 0, scrollduration:1000, fadeduration:[500, 100]},

controlHTML: '<img src="URL DA IMAGEM"/>', //HTML for control, which is auto wrapped in DIV w/ ID="topcontrol"

controlattrs: {offsetx:5, offsety:5}, //offset of control relative to right/ center of window corner

anchorkeyword: '#top', //Enter href value of HTML anchors on the page that should also act as "Scroll Up" links

state: {isvisible:false, shouldvisible:false},

scrollup:function(){

if (!this.cssfixedsupport) //if control is positioned using JavaScript

this.$control.css({opacity:0}) //hide control immediately after clicking it

var dest=isNaN(this.setting.scrollto)? this.setting.scrollto : parseInt(this.setting.scrollto)

if (typeof dest=="string" && jQuery('#'+dest).length==1) //check element set by string exists

dest=jQuery('#'+dest).offset().top

else

dest=0

this.$body.animate({scrollTop: dest}, this.setting.scrollduration);

},

keepfixed:function(){

var $window=jQuery(window)

var controlx=$window.scrollLeft() + $window.width() - this.$control.width() - this.controlattrs.offsetx

var controly=$window.scrollTop() + $window.height() - this.$control.height() - this.controlattrs.offsety

this.$control.css({left:controlx+'px', top:controly+'px'})

},

togglecontrol:function(){

var scrolltop=jQuery(window).scrollTop()

if (!this.cssfixedsupport)

this.keepfixed()

this.state.shouldvisible=(scrolltop>=this.setting.startline)? true : false

if (this.state.shouldvisible && !this.state.isvisible){

this.$control.stop().animate({opacity:1}, this.setting.fadeduration[0])

this.state.isvisible=true

}

else if (this.state.shouldvisible==false && this.state.isvisible){

this.$control.stop().animate({opacity:0}, this.setting.fadeduration[1])

this.state.isvisible=false

}

},

init:function(){

jQuery(document).ready(function($){

var mainobj=scrolltotop

var iebrws=document.all

mainobj.cssfixedsupport=!iebrws || iebrws && document.compatMode=="CSS1Compat" && window.XMLHttpRequest //not IE or IE7+ browsers in standards mode

mainobj.$body=(window.opera)? (document.compatMode=="CSS1Compat"? $('html') : $('body')) : $('html,body')

mainobj.$control=$('<div id="topcontrol">'+mainobj.controlHTML+'</div>')

.css({position:mainobj.cssfixedsupport? 'fixed' : 'absolute', bottom:mainobj.controlattrs.offsety, right:mainobj.controlattrs.offsetx, opacity:0, cursor:'pointer'})

.attr({title:'Subir ao Topo!'})

.click(function(){mainobj.scrollup(); return false})

.appendTo('body')

if (document.all && !window.XMLHttpRequest && mainobj.$control.text()!='') //loose check for IE6 and below, plus whether control contains any text

mainobj.$control.css({width:mainobj.$control.width()}) //IE6- seems to require an explicit width on a DIV containing text

mainobj.togglecontrol()

$('a[href="' + mainobj.anchorkeyword +'"]').click(function(){

mainobj.scrollup()

return false

})

$(window).bind('scroll resize', function(e){

mainobj.togglecontrol()

})

})

}

}

scrolltotop.init()

</script>

Modifique apenas o que está em roxo,colocando o Url da imagem escolhida,abaixo deixo alguns modelos para vocês :D
 https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjemQXh3T3wvg_jTmeW0vAJQLXzGV_ctTh7fCs9YFRioUBBKBBylO3twDDGsN4eK6jUotjVdl2GVdxBT7uuskXSChuNgxz6MGVYOO1qR_P1Ry1e_71GdCmhtHqM0a5v9HBBjqH8Eu7hBxg/s1600/topo14.png



https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiF1R5tZi2fyArbaYAmuhiTXDt5L_cRYvYhK8LP5rZ5zB3agfgzn4p_9VIUsIHhsdJnScwryPLELtDGNKX6NUNcNHxTwbeeFQTqGaYHUnU1fqF5U_XyfmUGsm3eMk0HMFa8Bvpzn-QJCys/s1600/topo13.png



https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjGGmvXOOCB7C0Bex59dIPcGMFuD_WI1AVbUE_-vQgp5Tue_w7KaxfuhxD-qdPOcz2perH7gOXFeqR0K31Eh18XxmKm6vbnvz6iXzHAKzJU2P63DZ8GUYd7hRyrkDgCE6E38eRgLXLIBhM/s1600/topo8.png



https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjCZ_Q-PF-mLKb2z11EuOkmr-B9qWFsvTJcFQ99T2pxXfMnKR39RlNuo6fxiY3GSAlcfJVhyphenhyphen6-BXeMkD7zvpbGTIku8rrrj49zXA_Il7epccGdjEeJEZ4neVVlGX7XYJ-H1CpcLOFylkG4/s1600/topo7.png



https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjGzLZ3UEgSFv-NYSoL-2o7NWpBImPIYnwdO18l0Blt4Kn-jhhIdtNaoyMYyYmZ_eBcG18yRPbFBGRqii-nqyzHbDLC9uVAqpF8FOGCGjkpFj5Aa6B-p4UkjV3vGIfwpPRjRjp3JYzVDtgp/s1600/bot%C3%A3ocerejathaysoares.png



https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgaZwa8SG_N-JiEZgcnrs0k_SPX389J1zSJX8WI37s-rC28ey8OpgGgHU4Eh5NQU4pptHBUBtrmPBaPPWYvzGxGvblBQhqe4efGkAOs8qvSZwqowQFmYiLx709a9vUsqfjoIJbk0JjVF44/s1600/topodoblogdetalhes6.png



https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgch32dd-mFxs32n-q1rdhCbHf98rViTZWM10fBA9bAh1mf5IkSD-gdspQPBOGEKwCWbwFCmsieb3bI7jlfO5dKSLkcwtbykhZpW8EMrO-XzWgjjFBpYcOAiSo7JU2tPaC7SLZuKdYBM4w/s1600/topodoblogdetalhes8.png


Espero que tenham gostado :D
Qualquer dúvida estou à disposição.
Beijos doces ^.^