http://www.cnts.gov.cn/global/floatAdv.js

1// JavaScript Document
2
3
4	<!--
5//公共脚本文件 main.js
6function addEvent(obj,evtType,func,cap){
7    cap=cap||false;
8	if(obj.addEventListener){
9	    obj.addEventListener(evtType,func,cap);
10		return true;
11	}else if(obj.attachEvent){
12        if(cap){
13	        obj.setCapture();
14	        return true;
15	    }else{
16		    return obj.attachEvent("on" + evtType,func);
17		}
18	}else{
19		return false;
20    }
21}
22function getPageScroll(){
23    var xScroll,yScroll;
24	if (self.pageXOffset) {
25		xScroll = self.pageXOffset;
26	} else if (document.documentElement && document.documentElement.scrollLeft){
27		xScroll = document.documentElement.scrollLeft;
28	} else if (document.body) {
29		xScroll = document.body.scrollLeft;
30	}
31	if (self.pageYOffset) {
32		yScroll = self.pageYOffset;
33	} else if (document.documentElement && document.documentElement.scrollTop){
34		yScroll = document.documentElement.scrollTop;
35	} else if (document.body) {
36		yScroll = document.body.scrollTop;
37	}
38	arrayPageScroll = new Array(xScroll,yScroll);
39	return arrayPageScroll;
40}
41function GetPageSize(){
42    var xScroll, yScroll;
43    if (window.innerHeight && window.scrollMaxY) {	
44        xScroll = document.body.scrollWidth;
45        yScroll = window.innerHeight + window.scrollMaxY;
46    } else if (document.body.scrollHeight > document.body.offsetHeight){
47        xScroll = document.body.scrollWidth;
48        yScroll = document.body.scrollHeight;
49    } else {
50        xScroll = document.body.offsetWidth;
51        yScroll = document.body.offsetHeight;
52    }
53    var windowWidth, windowHeight;
54    if (self.innerHeight) {
55        windowWidth = self.innerWidth;
56        windowHeight = self.innerHeight;
57    } else if (document.documentElement && document.documentElement.clientHeight) {
58        windowWidth = document.documentElement.clientWidth;
59        windowHeight = document.documentElement.clientHeight;
60    } else if (document.body) {
61        windowWidth = document.body.clientWidth;
62        windowHeight = document.body.clientHeight;
63    }	
64    if(yScroll < windowHeight){
65        pageHeight = windowHeight;
66    } else { 
67        pageHeight = yScroll;
68    }
69    if(xScroll < windowWidth){	
70        pageWidth = windowWidth;
71    } else {
72        pageWidth = xScroll;
73    }
74    arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
75    return arrayPageSize;
76}
77//广告脚本文件 AdMove.js
78/*
79例子
80<div id="Div2">
81    ***** content ******
82</div>
83var ad=new AdMove("Div2");
84ad.Run();
85*/
86////////////////////////////////////////////////////////
87var AdMoveConfig=new Object();
88AdMoveConfig.IsInitialized=false;
89AdMoveConfig.ScrollX=0;
90AdMoveConfig.ScrollY=0;
91AdMoveConfig.MoveWidth=0;
92AdMoveConfig.MoveHeight=0;
93AdMoveConfig.Resize=function(){
94    var winsize=GetPageSize();
95    AdMoveConfig.MoveWidth=winsize[2];
96    AdMoveConfig.MoveHeight=winsize[3];
97    AdMoveConfig.Scroll();
98}
99AdMoveConfig.Scroll=function(){
100    var winscroll=getPageScroll();
101    AdMoveConfig.ScrollX=winscroll[0];
102    AdMoveConfig.ScrollY=winscroll[1];
103}
104addEvent(window,"resize",AdMoveConfig.Resize);
105addEvent(window,"scroll",AdMoveConfig.Scroll);
106function AdMove(id){
107    if(!AdMoveConfig.IsInitialized){
108        AdMoveConfig.Resize();
109        AdMoveConfig.IsInitialized=true;
110    }
111    var obj=document.getElementById(id);
112    obj.style.position="absolute";
113    var W=AdMoveConfig.MoveWidth-obj.offsetWidth;
114    var H=AdMoveConfig.MoveHeight-obj.offsetHeight;
115    var x = W*Math.random(),y = H*Math.random();
116    var rad=(Math.random()+1)*Math.PI/6;
117    var kx=Math.sin(rad),ky=Math.cos(rad);
118    var dirx = (Math.random()<0.5?1:-1), diry = (Math.random()<0.5?1:-1);
119    var step = 1;
120    var interval;
121    this.SetLocation=function(vx,vy){x=vx;y=vy;}
122    this.SetDirection=function(vx,vy){dirx=vx;diry=vy;}
123    obj.CustomMethod=function(){
124        obj.style.left = (x + AdMoveConfig.ScrollX) + "px";
125        obj.style.top = (y + AdMoveConfig.ScrollY) + "px";
126        rad=(Math.random()+1)*Math.PI/6;
127        W=AdMoveConfig.MoveWidth-obj.offsetWidth;
128        H=AdMoveConfig.MoveHeight-obj.offsetHeight;
129        x = x + step*kx*dirx;
130        if (x < 0){dirx = 1;x = 0;kx=Math.sin(rad);ky=Math.cos(rad);} 
131        if (x > W){dirx = -1;x = W;kx=Math.sin(rad);ky=Math.cos(rad);}
132        y = y + step*ky*diry;
133        if (y < 0){diry = 1;y = 0;kx=Math.sin(rad);ky=Math.cos(rad);} 
134        if (y > H){diry = -1;y = H;kx=Math.sin(rad);ky=Math.cos(rad);}
135    }
136    this.Run=function(){

137        var delay = 10;
138        interval=setInterval(obj.CustomMethod,delay);
139        obj.onmouseover=function(){clearInterval(interval);}
140        obj.onmouseout=function(){interval=setInterval(obj.CustomMethod, delay);}
141    }
142}
143
144
145
146	//-->