左右漂浮的广告代码

最新推荐文章于 2021-03-21 22:38:12 发布

最新推荐文章于 2021-03-21 22:38:12 发布 · 92 阅读

文章标签：

#JavaScript #ViewUI

博客给出了引用JS文件的代码，还展示了一段JavaScript代码，定义了浮动元素相关的函数，包括添加浮动元素、让浮动元素跟随滚动等功能，并创建了浮动元素实例。

引用JS文件的代码：

<----

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-112',230,'<a href=http://www.***.com/ target=_blank><img src=***.gif border=0></a>');
theFloaters.addItem('followDiv2',12,230,'<a href=http://www.***.com/ target=_blank><img src=***.gif border=0></a>');
theFloaters.play();

-->