Cara memasang tombol kembali ke atas dengan efek scroll dan auto hide

Memasang tombol kembali ke atas di blog | Pada kesempatan yang lalu, tepatnya beberapa hari yang lalu saya share tentang cara membuat daftar isi di blog. Saya baru sempat update lagi berhubung adanya kesibukan di tempat PKL sehingga blog ini kurang terurus, tapi alhamdulillah ada kesempatan untuk update blog. 

Pada postingan ini, saya sekedar berbagi tombol kembali ke atas yang saya terapkan di blog saya ini dengan efek scroll dan juga auto hide. Langsung saja caranya sebagai berikut:

1. Pada dashboard blog, pilih tata letak.
2. kemudian pilih tambah gadget
3. pilih HTML/Javascript
4. Kemudian copy kode di bawah ini dan paste pada koloh HTML/javascript tadi

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript" >
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 (0=top).

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

    controlHTML: '<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi4O2X0j_X9kP35PVltSeMNLnUuQO97NAz5SASB5UOC1eRvSxpjH4Iy7PQKDL5OUzJCp7VuPaRj2ICJGi1bPZte2NWBKagT2eH79Laddmdp-b2RcD6GpJbtgyXdezuKs85zDQfv2i9M4Mw/s400/Back-to-top.png" />', //HTML for control, which is auto wrapped in DIV w/ ID="topcontrol"

    controlattrs: {offsetx:5, offsety:5}, //offset of control relative to right/ bottom 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=$('<div id="topcontrol">'+mainobj.controlHTML+'</div>')
                .css({position:mainobj.cssfixedsupport? 'fixed' : 'absolute', bottom:mainobj.controlattrs.offsety, right:mainobj.controlattrs.offsetx, opacity:0, cursor:'pointer'})
                .attr({title:'Scroll Back to Top'})
                .click(function(){mainobj.scrollup(); return false})
                .appendTo('body')
            if (document.all && !window.XMLHttpRequest && mainobj.$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>

5. Simpan

Silahkan ganti link image yang berwarna biru di atas dengan gambar anda. Jika anda ingin gambar back to top silahkan kunjungi link ini.
Sekian dan wassalam