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;
}


var FloatMoveConfig=new Object();
FloatMoveConfig.IsInitialized=false;
FloatMoveConfig.ScrollX=0;
FloatMoveConfig.ScrollY=0;
FloatMoveConfig.MoveWidth=0;
FloatMoveConfig.MoveHeight=0;
FloatMoveConfig.Resize=function(){
    var winsize=GetPageSize();
    FloatMoveConfig.MoveWidth=winsize[2];
    FloatMoveConfig.MoveHeight=winsize[3];
    FloatMoveConfig.Scroll();
}
FloatMoveConfig.Scroll=function(){
    var winscroll=getPageScroll();
    FloatMoveConfig.ScrollX=winscroll[0];
    FloatMoveConfig.ScrollY=winscroll[1];
}
addEvent(window,"resize",FloatMoveConfig.Resize);
addEvent(window,"scroll",FloatMoveConfig.Scroll);
function FloatMove(id){
    if(!FloatMoveConfig.IsInitialized){
        FloatMoveConfig.Resize();
        FloatMoveConfig.IsInitialized=true;
    }
    var obj=document.getElementById(id);
    obj.style.position="absolute";
    var W=FloatMoveConfig.MoveWidth-obj.offsetWidth;
    var H=FloatMoveConfig.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 + FloatMoveConfig.ScrollX) + "px";
        obj.style.top = (y + FloatMoveConfig.ScrollY) + "px";
        rad=(Math.random()+1)*Math.PI/6;
        W=FloatMoveConfig.MoveWidth-obj.offsetWidth;
        H=FloatMoveConfig.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;
        interval=setInterval(obj.CustomMethod,delay);
        obj.onmouseover=function(){clearInterval(interval);}
        obj.onmouseout=function(){interval=setInterval(obj.CustomMethod, delay);}
    }
}

document.write('<div id="crown_gg1" ><a target=blank href=tencent://message/?uin=451528421&Site=admin5.com&Menu=yes><img src="imgs/liuyan.jpg" border=0  /></a></div>');

var gg1=new FloatMove("crown_gg1");

gg1.Run();