function addEvent(obj,evtType,func,cap){   
    cap=cap||false;   
    if(obj.addEventListener){   
        obj.addEventListener(evtType,func,cap);   
        return true;   
    }else if(obj.attachEvent){   
        if(cap){   
            obj.setCapture();   
            return true;   
        }else{   
            return obj.attachEvent("on" + evtType,func);   
        }   
    }else{   
        return false;   
    }   
}   
function getPageScroll(){   
    var xScroll,yScroll;   
    if (self.pageXOffset) {   
        xScroll = self.pageXOffset;   
    } else if (document.documentElement && document.documentElement.scrollLeft){   
        xScroll = document.documentElement.scrollLeft;   
    } else if (document.body) {   
        xScroll = document.body.scrollLeft;   
    }   
    if (self.pageYOffset) {   
        yScroll = self.pageYOffset;   
    } else if (document.documentElement && document.documentElement.scrollTop){   
        yScroll = document.documentElement.scrollTop;   
    } else if (document.body) {   
        yScroll = document.body.scrollTop;   
    }   
    arrayPageScroll = new Array(xScroll,yScroll);   
    return arrayPageScroll;   
}   
function GetPageSize(){   
    var xScroll, yScroll;   
    if (window.innerHeight && window.scrollMaxY) {       
        xScroll = document.body.scrollWidth;   
        yScroll = window.innerHeight + window.scrollMaxY;   
    } else if (document.body.scrollHeight > document.body.offsetHeight){   
        xScroll = document.body.scrollWidth;   
        yScroll = document.body.scrollHeight;   
    } else {   
        xScroll = document.body.offsetWidth;   
        yScroll = document.body.offsetHeight;   
    }   
    var windowWidth, windowHeight;   
    if (self.innerHeight) {   
        windowWidth = self.innerWidth;   
        windowHeight = self.innerHeight;   
    } else if (document.documentElement && document.documentElement.clientHeight) {   
        windowWidth = document.documentElement.clientWidth;   
        windowHeight = document.documentElement.clientHeight;   
    } else if (document.body) {   
        windowWidth = document.body.clientWidth;   
        windowHeight = document.body.clientHeight;   
    }       
    if(yScroll < windowHeight){   
        pageHeight = windowHeight;   
    } else {    
        pageHeight = yScroll;   
    }   
    if(xScroll < windowWidth){       
        pageWidth = windowWidth;   
    } else {   
        pageWidth = xScroll;   
    }   
    arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight)    
    return arrayPageSize;   
}   
//广告脚本文件 AdMove.js   
/*  
例子  
<div id="Div2">  
    ***** content ******  
</div>  
var ad=new AdMove("Div2");  
ad.Run();  
*/  
////////////////////////////////////////////////////////   
var AdMoveConfig=new Object();   
AdMoveConfig.IsInitialized=false;   
AdMoveConfig.ScrollX=0;   
AdMoveConfig.ScrollY=0;   
AdMoveConfig.MoveWidth=0;   
AdMoveConfig.MoveHeight=0;   
AdMoveConfig.Resize=function(){   
    var winsize=GetPageSize();   
    AdMoveConfig.MoveWidth=winsize[2];   
    AdMoveConfig.MoveHeight=winsize[3];   
    AdMoveConfig.Scroll();   
}   
AdMoveConfig.Scroll=function(){   
    var winscroll=getPageScroll();   
    AdMoveConfig.ScrollX=winscroll[0];   
    AdMoveConfig.ScrollY=winscroll[1];   
}   
addEvent(window,"resize",AdMoveConfig.Resize);   
addEvent(window,"scroll",AdMoveConfig.Scroll);   
function AdMove(id){   
    if(!AdMoveConfig.IsInitialized){   
        AdMoveConfig.Resize();   
        AdMoveConfig.IsInitialized=true;   
    }   
    var obj=document.getElementById(id);   
    obj.style.position="absolute";   
    var W=AdMoveConfig.MoveWidth-obj.offsetWidth;   
    var H=AdMoveConfig.MoveHeight-obj.offsetHeight;   
    var x = W*Math.random(),y = H*Math.random();   
    var rad=(Math.random()+1)*Math.PI/6;   
    var kx=Math.sin(rad),ky=Math.cos(rad);   
    var dirx = (Math.random()<0.5?1:-1), diry = (Math.random()<0.5?1:-1);   
    var step = 1;   
    var interval;   
    this.SetLocation=function(vx,vy){x=vx;y=vy;}   
    this.SetDirection=function(vx,vy){dirx=vx;diry=vy;}   
    obj.CustomMethod=function(){   
        obj.style.left = (x + AdMoveConfig.ScrollX) + "px";   
        obj.style.top = (y + AdMoveConfig.ScrollY) + "px";   
        rad=(Math.random()+1)*Math.PI/6;   
        W=AdMoveConfig.MoveWidth-obj.offsetWidth;   
        H=AdMoveConfig.MoveHeight-obj.offsetHeight;   
        x = x + step*kx*dirx;   
        if (x < 0){dirx = 1;x = 0;kx=Math.sin(rad);ky=Math.cos(rad);}    
        if (x > W){dirx = -1;x = W;kx=Math.sin(rad);ky=Math.cos(rad);}   
        y = y + step*ky*diry;   
        if (y < 0){diry = 1;y = 0;kx=Math.sin(rad);ky=Math.cos(rad);}    
        if (y > H){diry = -1;y = H;kx=Math.sin(rad);ky=Math.cos(rad);}   
    }   
    this.Run=function(){   
        var delay =10;//移动速度   
        interval=setInterval(obj.CustomMethod,delay);   
        obj.onmouseover=function(){clearInterval(interval);}   
        obj.onmouseout=function(){interval=setInterval(obj.CustomMethod, delay);}   
    }   
}