var btn_top_ht={};
btn_top_ht.css='<style>   .rounded-floating-btn {      position: fixed;    right: 20px;    width: 50px !important;    /*height: 75px !important;*/   bottom: 20px;    padding: 15px;   z-index: 5;    border-radius: 2px;    cursor: pointer;    background-color: #101010;    box-shadow: 0 0 25px rgba(0, 0, 0, 0.3);   opacity:1;   color: #fff;    font-size: 70%;    font-weight: 400;   }   .floated-btn-svg-icon {    width: 20px;    fill: #fff;    margin: 0 auto;    margin-top: 3px;}   .rounded-floating-btn:hover { opacity:0.9; }    .rounded-floating-btn .zptext {    margin-top: 3px;   }      </style>';
btn_top_ht.code='<div class="zpelem-box zpelement zpbox-container zpdefault-section zpdefault-section-bg rounded-floating-btn" data-background-type="none" style="display:none" id="scrollToTop" onclick="clifkyiottp();"><div class="floated-btn-svg-icon"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 268.831 268.832"><path d="M223.255 83.659l-80-79.998c-4.881-4.881-12.797-4.881-17.678 0l-80 80c-4.883 4.882-4.883 12.796 0 17.678 2.439 2.44 5.64 3.661 8.839 3.661s6.397-1.221 8.839-3.661l58.661-58.661v213.654c0 6.903 5.597 12.5 12.5 12.5 6.901 0 12.5-5.597 12.5-12.5V42.677l58.661 58.659c4.883 4.881 12.797 4.881 17.678 0 4.882-4.881 4.882-12.795 0-17.677z"></path></svg></div><div class="zptext zptext-align-center" style="display:none;"><p>TOP</p></div></div>';

var zzdiv = document.createElement('div');   
zzdiv.id="btn_top-ds";

function clifkyiottp(){   }

window.onload=function(){  zzdiv.innerHTML=btn_top_ht.css+btn_top_ht.code;     zzdiv.addEventListener('click',function(e){    e.preventDefault();    window.scrollTo(0,0);});     document.body.appendChild(zzdiv);          };
window.onscroll = function() {    var threshold = 50;   var scrollToTop_btn = document.getElementById('scrollToTop');   scrollToTop_btn.style.display = (document.body.scrollTop > threshold || document.documentElement.scrollTop > threshold) ? 'block' : 'none';  };