<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>fixedBox</title> <script id="xcore" type="text/javascript" src="http://www.haiqiancun.com/xWidget-0.1/xcore.js"></script> <style> *{margin:0px;padding:0px;} body{height:3000px;} </style> <script> $(function() { $(".fixedBox").each(function() { var self = $(this); var id = self.attr("id") || 'fixedBox_' + Math.round(Math.random() * 100000); self.attr("id", id); var fb = $("#" + id); var mt = Math.floor(fb.css("margin-top").substring(2, 0)) || 0; var cd = $('<div + fb.outerHeight() + 'px;display:none;' + fb.attr("style") + '"></div>'); fb.after(cd); fb.css({ 'z-index': 999 }).data({ 'top': fb.offset().top, 'left': fb.offset().left }); $(window).scroll(function() { var pt = fb.data('top'); var pl = fb.data('left'); var st = $(document).scrollTop() - 10; var h = $(document).height(); if (st > pt || st == pt) { cd.show(); if ((st + self.outerHeight()) > h) { self.css({ position: 'fixed', top: (h - (st + self.outerHeight())) }); } else { self.css({ position: 'fixed', top: 0 - mt }); } } else { cd.hide(); self.css({ position: 'relative', top: 0 }); } }) }) }) </script> </span> </head> <body> <div> <div> <script> $(function(){ $(".fixedBox").each(function(){ var self= $(this); var id = self.attr("id")||'fixedBox_'+Math.round(Math.random()*100000); self.attr("id",id); var fb = $("#"+id); var mt = Math.floor(fb.css("margin-top").substring(2,0))||0; var cd = $('<div+fb.outerHeight()+'px;display:none;'+fb.attr("style")+'"></div>'); fb.after(cd); fb.css({'z-index':999}).data({'top':fb.offset().top,'left':fb.offset().left}); $(window).scroll(function(){ var pt = fb.data('top'); var pl = fb.data('left'); var st = $(document).scrollTop()-10; var h = $(document).height(); if(st>pt||st==pt){ cd.show(); if((st+self.outerHeight())>h){ self.css({position:'fixed',top:(h-(st+self.outerHeight()))}); }else{ self.css({position:'fixed',top:0-mt}); } }else{ cd.hide(); self.css({position:'relative',top:0}); } }) }) }) </script> </div> 例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例子例 </div> </body> </html>
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