滚动到顶部按钮不起作用

Question

我的博客是www.xperiblog.com 我有一个滚动到顶部按钮，它工作正常。 但最近我删除了我的文章导航脚本。现在该按钮不起作用。这里的代码

滚动到顶部的按钮CSS
/* CSS返回页首*/
＃背到顶部{文本对齐：中心;背景：＃f97e76;颜色：#FFF;溢出：隐藏; text-align：center; width：60px; height：30px; display：block; margin：0 auto; border-radius：5px 5px 0 0; border-top：3px solid＃d26b64; cursor：pointer; background-image： URL（" http://4.bp.blogspot.com/-YQ-kX3Ifzb4/U6a5HhEhlLI/AAAAAAAADxI/wT_VI6RLrHM/s1600/totop.png");background-repeat:no-repeat;background-position:center;}
＃后端到顶部的{颜色：#FFF;}
＃后端到顶部：悬停{颜色：＃F0F0F0;}

滚动到顶部按钮脚本

<script> 
$("#back-to-top").click(function() { 
    $("html, body").animate({ scrollTop: 0 }, "slow"); 
    return false; 
}); 
</script> 

脚本，我删除

<script type='text/javascript'> 
    var pageNaviConf = { 
     perPage: 5, 
     numPages: 5, 
     firstText: "First", 
     lastText: "Last", 
     nextText: "Next", 
     prevText: "Prev"; 
    } 
    </script> 
    <script type='text/javascript'> 
    //<![CDATA[ 
    function pageNavi(o){var m=location.href,l=m.indexOf("/search/label/")!=-1,a=l?m.substr(m.indexOf("/search/label/")+14,m.length):"";a=a.indexOf("?")!=-1?a.substr(0,a.indexOf("?")):a;var g=l?"/search/label/"+a+"?updated-max=":"/search?updated-max=",k=o.feed.entry.length,e=Math.ceil(k/pageNaviConf.perPage);if(e<=1){return}var n=1,h=[""];l?h.push("/search/label/"+a+"?max-results="+pageNaviConf.perPage):h.push("/?max-results="+pageNaviConf.perPage);for(var d=2;d<=e;d++){var c=(d-1)*pageNaviConf.perPage-1,b=o.feed.entry[c].published.$t,f=b.substring(0,19)+b.substring(23,29);f=encodeURIComponent(f);if(m.indexOf(f)!=-1){n=d}h.push(g+f+"&max-results="+pageNaviConf.perPage)}pageNavi.show(h,n,e)}pageNavi.show=function(f,e,a){var d=Math.floor((pageNaviConf.numPages-1)/2),g=pageNaviConf.numPages-1-d,c=e-d;if(c<=0){c=1}endPage=e+g;if((endPage-c)<pageNaviConf.numPages){endPage=c+pageNaviConf.numPages-1}if(endPage>a){endPage=a;c=a-pageNaviConf.numPages+1}if(c<=0){c=1}var b='<span class="pages">Pages '+e+' of '+a+"</span> ";if(c>1){b+='<a href="'+f[1]+'">'+pageNaviConf.firstText+"</a>"}if(e>1){b+='<a href="'+f[e-1]+'">'+pageNaviConf.prevText+"</a>"}for(i=c;i<=endPage;++i){if(i==e){b+='<span class="current">'+i+"</span>"}else{b+='<a href="'+f[i]+'">'+i+"</a>"}}if(e<a){b+='<a href="'+f[e+1]+'">'+pageNaviConf.nextText+"</a>"}if(endPage<a){b+='<a href="'+f[a]+'">'+pageNaviConf.lastText+"</a>"}document.write(b)};(function(){var b=location.href;if(b.indexOf("?q=")!=-1||b.indexOf(".html")!=-1){return}var d=b.indexOf("/search/label/")+14;if(d!=13){var c=b.indexOf("?"),a=(c==-1)?b.substring(d):b.substring(d,c);document.write('<script type="text/javascript" src="/feeds/posts/summary/-/'+a+'?alt=json-in-script&callback=pageNavi&max-results=99999"><\/script>')}else{document.write('<script type="text/javascript" src="/feeds/posts/summary?alt=json-in-script&callback=pageNavi&max-results=99999"><\/script>')}})(); 
    //]]> 
    </script> 

任何人都知道这里发生了什么。

Answer 1

我可以清除这个代码位，请参阅以下内容：

HTML

​​

CSS

#back-to-top { 
font-size: 18px !important; 
position: fixed; 
z-index: 9999; 
color: #e60000; 
cursor: pointer; 
bottom: 2em; 
right: 2em; 
text-decoration: none; 
transition: opacity 0.2s ease-out; 
opacity: 0; 
} 

#back-to-top.show { 
opacity: 1; 
} 

JS

if (jQuery('#back-to-top').length) { 
var scrollTrigger = 100, // px 
    backToTop = function() { 
     var scrollTop = jQuery(window).scrollTop(); 
     if (scrollTop > scrollTrigger) { 
      jQuery('#back-to-top').addClass('show'); 
     } else { 
      jQuery('#back-to-top').removeClass('show'); 
     } 
    }; 
backToTop(); 
jQuery(window).on('scroll', function() { 
    backToTop(); 
}); 
jQuery('#back-to-top').on('click', function (e) { 
    e.preventDefault(); 
    jQuery('html,body').animate({ 
     scrollTop: 0 
    }, 700); 
});