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CORION / WWW-Mechanize-Chrome-0.73 / t / 76-infinite-scroll.html 

            

              
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<html>
<head>
<style>
.page {height: 3000px;border:solid 1px #ccc}
</style>
</head>
<body>
<div id="scrollcontent">
<div class="page"></div>
</div>
<script>
var scroll_count = 0;
function getScrollXY() {
var scrOfX = 0, scrOfY = 0;
if( typeof( window.pageYOffset ) == 'number' ) {
    //Netscape compliant
    scrOfY = window.pageYOffset;
    scrOfX = window.pageXOffset;
} else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //DOM compliant
    scrOfY = document.body.scrollTop;
    scrOfX = document.body.scrollLeft;
} else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //IE6 standards compliant mode
    scrOfY = document.documentElement.scrollTop;
    scrOfX = document.documentElement.scrollLeft;
}
return [ scrOfX, scrOfY ];
}
function getDocHeight() {
var D = document;
return Math.max(
    D.body.scrollHeight, D.documentElement.scrollHeight,
    D.body.offsetHeight, D.documentElement.offsetHeight,
    D.body.clientHeight, D.documentElement.clientHeight
);
}
document.addEventListener("scroll", function (event) {
if (getDocHeight() - 20 <= getScrollXY()[1] + window.innerHeight)
{ 
  // simulate reaching bottom of page
  if (scroll_count > 5) {
    return;
  }
  // simulate network delay
  sleep(500);
  var oldcontent = document.getElementById('scrollcontent');
  oldcontent.innerHTML = oldcontent.innerHTML + '<div class="page">new content loaded</div>';
  document.getElementById("scrollcontent").innerHTML=oldcontent.innerHTML;
  scroll_count++;
}
});
function sleep(milliseconds) {
        var start = new Date().getTime();
        for (var i = 0; i < 1e7; i++) {
                if ((new Date().getTime() - start) > milliseconds){
                        break;
                }
        }
}
</script>
</body>
</html>