CARA MEMBUAT TOMBOL TOP UP DI BLOG

Tombol top up ini berfungsi untuk mempercepat scroll atau kembali keatas atau ke header dihalaman blog, hal ini dimaksudkan untuk mempermudah pengunjung dan membuat pengunjung merasa nyaman di blog kita. Saat pengunjung sedang membaca artikel yang sangat panjang sampai kebawah dan harus kembali melihat ke bagian atas, tidak perlu menggerakkan scroll atau mouse, cukup dengan meng-klik tombol top up, maka akan langsung kembali ke bagian atas blog. Untuk membuat tombol top up ini, saya akan share script-nya dibawah ini.

/***********************************************

* Scroll To Top Control script- © Dynamic Drive DHTML code library (www.dynamicdrive.com)

* Modified by www.depermana-share.blogspot.com.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="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbrn9dzeYvqSC8CMJLIP6TJeEITH2Kqr-0cvOFz_N5PLu_EZ93_4Eh4n1GfPV1O2oCMTLjckR49wAEhbGUxPKDLDKllbGCYopfwOTOEdAZ-AIWGIGPnJm-wcz8OCCfucQ5NwzOvlbNrHSP/s1600/arrow-up.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()