/*
太原恒拓科技 AdMove
*/

/*
例子
<div id="Div2">
    ***** content ******
</div>
var ad=new AdMove("Div2");
ad.Run();
*/
////////////////////////////////////////////////////////
var AdMoveConfig=new Object();
AdMoveConfig.IsInitialized=false;
AdMoveConfig.AdCount=0;
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,addCloseButton){
    if(!AdMoveConfig.IsInitialized){
        AdMoveConfig.Resize();
        AdMoveConfig.IsInitialized=true;
    }
    AdMoveConfig.AdCount++;
    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;
    if(addCloseButton){
        var closebtn=document.createElement("div");
        obj.appendChild(closebtn);
        closebtn.style.position="absolute";
        closebtn.style.top="1px";
        closebtn.style.left=(obj.offsetWidth-28) + "px";
        closebtn.style.width="24px";
        closebtn.style.height="12px";
        closebtn.style.borderStyle="solid";
        closebtn.style.borderWidth="1px";
        closebtn.style.borderColor="#000";
        closebtn.style.backgroundColor="#fff";
        closebtn.style.fontSize="12px";
        closebtn.style.color="#000";
        closebtn.style.cursor="pointer";
        closebtn.innerHTML="关闭";
        closebtn.onclick=function(){
            clearInterval(interval);
            closebtn.onclick=null;
            obj.onmouseover=null;
            obj.onmouseout=null;
            obj.MoveHandler=null;
            AdMoveConfig.AdCount--;
            if(AdMoveConfig.AdCount<=0){
                removeEvent(window,"resize",AdMoveConfig.Resize);
                removeEvent(window,"scroll",AdMoveConfig.Scroll);
                AdMoveConfig.Resize=null;
                AdMoveConfig.Scroll=null;
                AdMoveConfig=null;
            }
            obj.removeChild(closebtn);
            obj.style.overflow="hidden";
            setTimeout(function(){CloseIt(obj);},0);
        }
        var movebtn=document.createElement("div");
        obj.appendChild(movebtn);
        movebtn.style.position="absolute";
        movebtn.style.top="1px";
        movebtn.style.left=(obj.offsetWidth-56) + "px";
        movebtn.style.width="24px";
        movebtn.style.height="12px";
        movebtn.style.borderStyle="solid";
        movebtn.style.borderWidth="1px";
        movebtn.style.borderColor="#000";
        movebtn.style.backgroundColor="#fff";
        movebtn.style.fontSize="12px";
        movebtn.style.color="#000";
        movebtn.style.cursor="pointer";
        movebtn.innerHTML="移动";
        function BoxMouseMove(e){
            if(movebtn.moveflag){
                var mx,my;
                if(e){
                    mx=e.pageX;
                    my=e.pageY;
                }else{
                    mx=event.x;
                    my=event.y;
                }
                x=mx-movebtn.lastleft;
                y=my-movebtn.lasttop;
                movebtn.parentNode.style.left = x + "px";
                movebtn.parentNode.style.top = y + "px";
            }
        }
        movebtn.onmousemove=function(e){
            BoxMouseMove(e);
        }
        movebtn.onmousedown=function(e){
            var mx,my;
            if(e){
                mx=e.pageX;
                my=e.pageY;
            }else{
                mx=event.x;
                my=event.y;
            }
            addEvent(movebtn,"mousemove",BoxMouseMove,true);
            movebtn.lastleft=mx-parseInt(movebtn.parentNode.offsetLeft);
            movebtn.lasttop=my-parseInt(movebtn.parentNode.offsetTop);
            movebtn.moveflag=true;
            movebtn.style.cursor="move";
            document.onmousemove=movebtn.onmousemove;
            document.onmouseup=movebtn.onmouseup;
        }
        movebtn.onmouseup=function(){
            movebtn.moveflag=false;
            removeEvent(movebtn,"mousemove",BoxMouseMove,true);
            movebtn.style.cursor="pointer";
            document.onmousemove=null;
            document.onmouseup=null;
        }
    }
    obj.MoveHandler=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.SetLocation=function(vx,vy){x=vx;y=vy;}
    this.SetDirection=function(vx,vy){dirx=vx;diry=vy;}
    this.Run=function(){
        var delay = 10;
        interval=setInterval(obj.MoveHandler,delay);
        obj.onmouseover=function(){clearInterval(interval);}
        obj.onmouseout=function(){interval=setInterval(obj.MoveHandler, delay);}
    }
}
function CloseIt(obj){
    var w=parseInt(obj.style.width);
    var h=parseInt(obj.style.height);
    if(isNaN(w))w=3;
    if(isNaN(h))h=3;
    w-=3;
    h-=3;
    if(w<=0&&h<=0){
        obj.style.display="none";
        return;
    }
    if(w>0){
        obj.style.width=w + "px";
    }
    if(h>0){
        obj.style.height=h + "px";
    }
    setTimeout(function(){CloseIt(obj);},2);
}