不错的对联广告

var delta=0.15
var collection;
function floaters() {
this.items = [];
this.addItem = function(id,x,y,content)
{document.write('<DIV id='+id+' style="Z-INDEX: 10; POSITION: absolute;  width:80px; height:60px;left:'+(typeof(x)=='string'?eval(x):x)+';top:'+(typeof(y)=='string'?eval(y):y)+'">'+content+'</DIV>');
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;i<collection.length;i++)
{
var followObj  = collection[i].object;
var followObj_x  = (typeof(collection[i].x)=='string'?eval(collection[i].x):collection[i].x);
var followObj_y  = (typeof(collection[i].y)=='string'?eval(collection[i].y):collection[i].y);
if(followObj.offsetLeft!=(document.body.scrollLeft+followObj_x)) {
var dx=(document.body.scrollLeft+followObj_x-followObj.offsetLeft)*delta;
dx=(dx>0?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-95',200,'<IFRAME MARGINHEIGHT=0 MARGINWIDTH=0 FRAMEBORDER=0 WIDTH=88 HEIGHT=267 SCROLLING=NO SRC=\'\/js\/right.htm\'><\/IFRAME>');
theFloaters.addItem('followDiv2',8,200,'<IFRAME MARGINHEIGHT=0 MARGINWIDTH=0 FRAMEBORDER=0 WIDTH=88 HEIGHT=267 SCROLLING=NO SRC=\'\/js\/left.htm\'><\/IFRAME>');
theFloaters.play();

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