//左边 var left_img='

'; //右边 var right_img='

'; var delta=0.05 var collection; function floaters() { this.items = []; this.addItem = function(id,x,y,content) { document.write('

'+content+'

'); var newItem = {}; newItem.object = document.getElementById(id); newItem.x = x; newItem.y = y; this.items[this.items.length] = newItem; } this.play = function() { collection = this.items setInterval('play()',10); } } function play() { for(var i=0;i0?1:-1)*Math.ceil(Math.abs(dx)); followObj.style.left=followObj.offsetLeft+dx; } if(followObj.offsetTop!=(document.body.scrollTop+followObj_y)) { var dy=(document.body.scrollTop+followObj_y-followObj.offsetTop)*delta; dy=(dy>0?1:-1)*Math.ceil(Math.abs(dy)); followObj.style.top=followObj.offsetTop+dy; } followObj.style.display = ''; } } var theFloaters = new floaters(); theFloaters.addItem('followDiv1','document.body.clientWidth-99',130,''+right_img+''); theFloaters.addItem('followDiv2',6,130,''+left_img+''); theFloaters.play();