function isScrollBottom() {
var documentHeight = document.documentElement.scrollHeight;
var winHeight = document.documentElement.clientHeight;
var scrollPosition = winHeight + getScrollTop();
return console.log(documentHeight == scrollPosition);
} function getScrollTop() {
if (typeof pageYOffset != 'undefined') {
//most browsers except IE before #9
return pageYOffset;
}
else {
var B = document.body; //IE 'quirks'
var D = document.documentElement; //IE with doctype
D = (D.clientHeight) ? D : B;
return D.scrollTop;
}
}