Menambahkan Fitur Auto Upscroll pada blog

Terkadang saat kita membaca postingan di blog, adakalanya kita terus mengarahkan bacaaan hingga ke bawah, entah untuk melihat daftar postingan atau membacanya. Namun, terasa melelahkan bukan jika kita harus memutar-mutar roda scroll pada mouse atau menggeser ruler page ke atas. Berikut ini saya akan membagikan tips untuk memudahkan pembaca dalam mengembalikan posisi pandangan baca ke atas (header) dengan menggunakan Auto Upscroll.



1. Login ke dashboard blog anda-->pilih "Layout"-->pilih "Page Element"
2. Pilih "Add a gadget" pada rancangan sidebar blog anda
3. Pilih "Add HTML/Javascript", kemudian masukkan kode berikut


<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript" >
/*********************************************** 
* Scroll To Top Control script- © Dynamic Drive DHTML code library (www.dynamicdrive.com) 
* Modified by www.MyBloggerTricks.com 
* This notice MUST stay intact for legal use 
* Visit Project Page at http://www.dynamicdrive.com for full source code 
***********************************************/
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="http://lh5.ggpht.com/-Il7F_M9Fotw/TmK1cdW5iJI/AAAAAAAAE64/qmeyJYgTynw/2%25255B4%25255D.png?imgmax=800" />', //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>

4. Kemudian simpan gadget tadi. Maka sebuah tanda panah mengarah ke atas akan muncul di
    sudut kanan bawah blog anda. Jika di-klik, maka posisi halaman otomatis bergeser ke atas.

Selamat mencoba :D