对联式广告代码效果大全

对联|广告

[普通效果]
现在很多网站广告做的如火如荼，现在我就来介绍一下常见的对联浮动广告效果的代码使用方法，介绍的这种效果，在1024*768分辨率下正常显示，在800*600的分辨率下可以自动隐藏，以免遮住页面影响访问者浏览内容，下面就是实现效果所需代码：

   var delta=0.015
   var collection;
   function floaters() {
       this.items    = [];
       this.addItem    = function(id,x,y,content)
                 {
                   document.write(‘<DIV id=‘+id+‘ style="Z-INDEX: 0; 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()
       {
           if(screen.width<=800)
           {
               for(var i=0;i<collection.length;i++)
               {
                   collection[i].object.style.display    = ‘none‘;
               }
               return;
           }
           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));