/*
|--------------------------------------------------------------------------
| 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: 800,
    			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);