Team:Tsinghua/js/move-top

/* UItoTop jQuery Plugin 1.2 | 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:1000,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);$('#'+settings.containerHoverID,this).stop().animate({'opacity':0},settings.inDelay,settings.easingType);return false;}).prepend('').hover(function(){$(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);