- ///js页面滚动浮动层智能定位(jQuery)实现
- ///调用：$("#popfloat").smartFloat($("#mainInfo").width() + 21);
- $.fn.smartFloat = function(width_p) {
- var position = function(element) {
- var top = element.position().top, pos = element.css("position");
- $(window).scroll(function() {
- var scrolls = $(this).scrollTop();
- if (scrolls > top) {
- if (window.XMLHttpRequest) {
- element.css({
- position: "fixed",
- width: width_p,
- top: 0
- });
- } else {
- element.css({
- top: scrolls
- });
- }
- } else {
- element.css({
- position: "", //absolute
- top: top
- });
- }
- });
- };
- return $(this).each(function() {
- position($(this));
- });
- };
时间： 2024-10-08 08:22:28