function getScrollY(){scrOfY=0;if(typeof(window.pageYOffset)=="number"){scrOfY=window.pageYOffset;}else if(document.body&&(document.body.scrollLeft||document.body.scrollTop)){scrOfY=document.body.scrollTop;}else if(document.documentElement&&(document.documentElement.scrollLeft||document.documentElement.scrollTop)){scrOfY=document.documentElement.scrollTop;}
return scrOfY;}
jQuery(function($){var upprev_closed=false;var upprev_hidden=true;$(window).scroll(function(){var lastScreen=getScrollY()+ $(window).height()<$(document).height()*0.4?false:true;if(lastScreen&&!upprev_closed){$("#upprev_box").stop().animate({right:"0px"});upprev_hidden=false;}
else if(upprev_closed&&getScrollY()==0){upprev_closed=false;}
else if(!upprev_hidden){upprev_hidden=true;$("#upprev_box").stop().animate({right:"-400px"});}});$("#upprev_close").click(function(){$("#upprev_box").stop().animate({right:"-400px"});upprev_closed=true;upprev_hidden=true;});});