UItoTop jQuery Plugin 1.2 by Matt Varone

jquery.uitotop.min.js

/*
|--------------------------------------------------------------------------
| UItoTop jQuery Plugin 1.2 by Matt Varone
| http://www.mattvarone.com/web-design/uitotop-jquery-plugin/
|--------------------------------------------------------------------------
*/
(function(a){a.fn.UItoTop=function(d){var f={text:"To Top",min:200,inDelay:600,outDelay:400,containerID:"toTop",containerHoverID:"toTopHover",scrollSpeed:1200,easingType:"linear"},e=a.extend(f,d),c="#"+e.containerID,b="#"+e.containerHoverID;a("body").append('<a href="#" id="'+e.containerID+'">'+e.text+"</a>");a(c).hide().on("click.UItoTop",function(){a("html, body").animate({scrollTop:0},e.scrollSpeed,e.easingType);a("#"+e.containerHoverID,this).stop().animate({opacity:0},e.inDelay,e.easingType);return false}).prepend('<span id="'+e.containerHoverID+'"></span>').hover(function(){a(b,this).stop().animate({opacity:1},600,"linear")},function(){a(b,this).stop().animate({opacity:0},700,"linear")});a(window).scroll(function(){var g=a(window).scrollTop();if(typeof document.body.style.maxHeight==="undefined"){a(c).css({position:"absolute",top:g+a(window).height()-50})}if(g>e.min){a(c).fadeIn(e.inDelay)}else{a(c).fadeOut(e.Outdelay)}})}})(jQuery);

script.js

<script type="text/javascript">

	jQuery.noConflict();

	jQuery.noConflict()(function(){
		jQuery.UItoTop({ easingType: 'easeOutQuart' });
	});
  
</script>

ui.totop.png

uitotop.css

/*
|--------------------------------------------------------------------------
| UItoTop jQuery Plugin 1.2
| http://www.mattvarone.com/web-design/uitotop-jquery-plugin/
|--------------------------------------------------------------------------
*/

#toTop {
	display:none;
	text-decoration:none;
	position:fixed;
	bottom:10px;
	right:10px;
	overflow:hidden;
	width:51px;
	height:51px;
	border:none;
	text-indent:100%;
	background:url(../img/ui.totop.png) no-repeat left top;
}

#toTopHover {
	background:url(../img/ui.totop.png) no-repeat left -51px;
	width:51px;
	height:51px;
	display:block;
	overflow:hidden;
	float:left;
	opacity: 0;
	-moz-opacity: 0;
	filter:alpha(opacity=0);
}

#toTop:active, #toTop:focus {
	outline:none;
}

uitotop.js

/*
|--------------------------------------------------------------------------
| UItoTop jQuery Plugin 1.2 by Matt Varone
| http://www.mattvarone.com/web-design/uitotop-jquery-plugin/
|--------------------------------------------------------------------------
*/
(function($){
	$.fn.UItoTop = function(options) {

 		var defaults = {
    			text: 'To Top',
    			min: 200,
    			inDelay:600,
    			outDelay:400,
      			containerID: 'toTop',
    			containerHoverID: 'toTopHover',
    			scrollSpeed: 1200,
    			easingType: 'linear'
 		    },
            settings = $.extend(defaults, options),
            containerIDhash = '#' + settings.containerID,
            containerHoverIDHash = '#'+settings.containerHoverID;
		
		$('body').append('<a href="#" id="'+settings.containerID+'">'+settings.text+'</a>');
		$(containerIDhash).hide().on('click.UItoTop',function(){
			$('html, body').animate({scrollTop:0}, settings.scrollSpeed, settings.easingType);
			$('#'+settings.containerHoverID, this).stop().animate({'opacity': 0 }, settings.inDelay, settings.easingType);
			return false;
		})
		.prepend('<span id="'+settings.containerHoverID+'"></span>')
		.hover(function() {
				$(containerHoverIDHash, this).stop().animate({
					'opacity': 1
				}, 600, 'linear');
			}, function() { 
				$(containerHoverIDHash, this).stop().animate({
					'opacity': 0
				}, 700, 'linear');
			});
					
		$(window).scroll(function() {
			var sd = $(window).scrollTop();
			if(typeof document.body.style.maxHeight === "undefined") {
				$(containerIDhash).css({
					'position': 'absolute',
					'top': sd + $(window).height() - 50
				});
			}
			if ( sd > settings.min ) 
				$(containerIDhash).fadeIn(settings.inDelay);
			else 
				$(containerIDhash).fadeOut(settings.Outdelay);
		});
};
})(jQuery);

It would be nice if the developer could get it to work with jQuery v1.10