back to top code ေလးပါ

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<!-- www.myhowtricks.com Scroll back to top code start -->

<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="http://myhowtricks.com/media/images/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>

<!-- www.myhowtricks.com Scroll back to top code End -->

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