在无限滚动上显示更多按钮

Question

I am trying to set up a show more button to start the infinite scroll. Once the button is clicked it should infinite scroll until the end.

function infiniteScroll() {

    var postHolder = document.getElementById('postHolder');
    var articleCount = postHolder.getElementsByTagName('article').length + 1;

    $.ajax({
        url: "/handlers/InfiniteScroll.ashx?page=" + articleCount + "",
        contentType: "text/html; charset=utf-8",
        dataType: "html",
        success: function (data) {
            if (data != "") {
                $('.posts-holder .article:last').after(data);
            }
        }
    });
 };

$("#showMore").click(function () {
     infiniteScroll();
     $(window).scroll(function () {
         var wintop = $(window).scrollTop(), docheight = $(document).height(), winheight = $(window).height();
         var scrolltrigger = 0.95;

         if (((wintop / (docheight - winheight)) > scrolltrigger) && test == 1) {
             infiniteScroll();
         }
     });
    $('#showMore').hide();
 });

But for some reason with this code the ajax success function gets called twice and the results get appended twice. Is there something i'm doing wrong or is there a better way to set this up?

Answer 1

I figured it out, it was the var scrolltrigger = 0.95; Something about the height was causing it to run twice.