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<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script> |
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<script type="text/javascript" > |
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/*********************************************** |
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* Scroll To Top Control script- © Dynamic Drive DHTML code library (www.dynamicdrive.com) |
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* Modified by www.MyBloggerTricks.com |
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* This notice MUST stay intact for legal use |
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* Visit Project Page at http://www.dynamicdrive.com for full source code |
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***********************************************/ |
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var scrolltotop={ |
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//startline: Integer. Number of pixels from top of doc scrollbar is scrolled before showing control |
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//scrollto: Keyword (Integer, or "Scroll_to_Element_ID"). How far to scroll document up when control is clicked on (0=top). |
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setting: {startline:100, scrollto: 0, scrollduration:1000, fadeduration:[500, 100]}, |
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controlHTML: '<img src="IMAGE LINK" />', //HTML for control, which is auto wrapped in DIV w/ ID="topcontrol" |
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controlattrs: {offsetx:5, offsety:5}, //offset of control relative to right/ bottom of window corner |
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anchorkeyword: '#top', //Enter href value of HTML anchors on the page that should also act as "Scroll Up" links |
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state: {isvisible:false, shouldvisible:false}, |
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scrollup:function(){ |
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if (!this.cssfixedsupport) //if control is positioned using JavaScript |
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this.$control.css({opacity:0}) //hide control immediately after clicking it |
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var dest=isNaN(this.setting.scrollto)? this.setting.scrollto : parseInt(this.setting.scrollto) |
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if (typeof dest=="string" && jQuery('#'+dest).length==1) //check element set by string exists |
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dest=jQuery('#'+dest).offset().top |
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else |
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dest=0 |
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this.$body.animate({scrollTop: dest}, this.setting.scrollduration); |
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}, |
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keepfixed:function(){ |
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var $window=jQuery(window) |
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var controlx=$window.scrollLeft() + $window.width() - this.$control.width() - this.controlattrs.offsetx |
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var controly=$window.scrollTop() + $window.height() - this.$control.height() - this.controlattrs.offsety |
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this.$control.css({left:controlx+'px', top:controly+'px'}) |
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}, |
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togglecontrol:function(){ |
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var scrolltop=jQuery(window).scrollTop() |
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if (!this.cssfixedsupport) |
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this.keepfixed() |
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this.state.shouldvisible=(scrolltop>=this.setting.startline)? true : false |
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if (this.state.shouldvisible && !this.state.isvisible){ |
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this.$control.stop().animate({opacity:1}, this.setting.fadeduration[0]) |
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this.state.isvisible=true |
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} |
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else if (this.state.shouldvisible==false && this.state.isvisible){ |
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this.$control.stop().animate({opacity:0}, this.setting.fadeduration[1]) |
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this.state.isvisible=false |
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} |
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}, |
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init:function(){ |
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jQuery(document).ready(function($){ |
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var mainobj=scrolltotop |
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var iebrws=document.all |
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mainobj.cssfixedsupport=!iebrws || iebrws && document.compatMode=="CSS1Compat" && window.XMLHttpRequest //not IE or IE7+ browsers in standards mode |
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mainobj.$body=(window.opera)? (document.compatMode=="CSS1Compat"? $('html') : $('body')) : $('html,body') |
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mainobj.$control=$('<div id="topcontrol">'+mainobj.controlHTML+'</div>') |
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.css({position:mainobj.cssfixedsupport? 'fixed' : 'absolute', bottom:mainobj.controlattrs.offsety, right:mainobj.controlattrs.offsetx, opacity:0, cursor:'pointer'}) |
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.attr({title:'Scroll Back to Top'}) |
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.click(function(){mainobj.scrollup(); return false}) |
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.appendTo('body') |
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if (document.all && !window.XMLHttpRequest && mainobj.$control.text()!='') //loose check for IE6 and below, plus whether control contains any text |
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mainobj.$control.css({width:mainobj.$control.width()}) //IE6- seems to require an explicit width on a DIV containing text |
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mainobj.togglecontrol() |
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$('a[href="' + mainobj.anchorkeyword +'"]').click(function(){ |
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mainobj.scrollup() |
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return false |
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}) |
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$(window).bind('scroll resize', function(e){ |
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mainobj.togglecontrol() |
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}) |
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}) |
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} |
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} |
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scrolltotop.init() |
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</script> |