Web page couplet advertisement code effect Daquan

Now a lot of website advertising to do in full swing, now I would like to introduce the common couplet floating advertising effect of the code use method, introduced this effect, in the 1024x768 resolution of the normal display, in the 800x600 resolution can automatically hide, so as not to cover the page affect visitors browsing content, Here is the code needed to implement the effect:

  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&lt;=800)


            {


for (var i=0;i&lt;collection.length;i++)


                {


collection[i].object.style.display = ' none ';


}


return;


            }


for (var i=0;i&lt;collection.length;i++)


            {


var followobj = collection[i].object;


var followobj_x = (typeof (collection[i].x) = = ' String ' eval (collection[i].x): collection[i].x);


&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; var followobj_y&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; = (typeof (collection[i].y) = = ' String ' eval (collection[i].y): COLLECTION[I].Y) ;