document.write('<DIV id=img style="LEFT: 80px; WIDTH: 200px; POSITION: absolute; TOP: 80px; HEIGHT: 100px"><a href="http://twhsiao.com/htdocs/index.php?gid=31" target="blank"><IMG src="logo01.jpg" border=0></a></div>');

var xPos = 20;

var yPos = document.body.clientHeight;

var step = 1;

var delay = 30; 

var height = 0;

var Hoffset = 0;

var Woffset = 0;

var yon = 0;

var xon = 0;

var pause = true;

var interval;

img.style.top = yPos;

function changePos() {

width = document.body.clientWidth;

height = document.body.clientHeight;

Hoffset = img.offsetHeight;

Woffset = img.offsetWidth;

img.style.left = xPos + document.body.scrollLeft;

img.style.top = yPos + document.body.scrollTop;

if (yon) {

yPos = yPos + step;

}

else {

yPos = yPos - step;

}

if (yPos < 0) {

yon = 1;

yPos = 0;

}

if (yPos >= (height - Hoffset)) {

yon = 0;

yPos = (height - Hoffset);

}

if (xon) {

xPos = xPos + step;

}

else {

xPos = xPos - step;

}

if (xPos < 0) {

xon = 1;

xPos = 0;

}

if (xPos >= (width - Woffset)) {

xon = 0;

xPos = (width - Woffset);

}

}

function start() {

img.visibility = "visible";

interval = setInterval('changePos()', delay);

}

function pause_resume() {

if(pause) {

clearInterval(interval);

pause = false;

}

else {

interval = setInterval('changePos()',delay);

pause = true;

}

}

start();





var brOK=false;

var mie=false;

var vmin=2;

var vmax=5;

var vr=3;

var timer1;

var nowads;

function movechip(chipname)

{

	if(brOK)

	{

		eval("chip="+chipname);

		if(!mie)

		{

			pageX=window.pageXOffset;

			pageW=window.innerWidth;

			pageY=window.pageYOffset;

			pageH=window.innerHeight;

		} 

		else

		{

			pageX=window.document.body.scrollLeft;

			pageW=window.document.body.offsetWidth-8;

			pageY=window.document.body.scrollTop;

			pageH=window.document.body.offsetHeight;

		}

		chip.xx=chip.xx+chip.vx;

		chip.yy=chip.yy+chip.vy;

		chip.vx+=vr*(Math.random()-0.5);

		chip.vy+=vr*(Math.random()-0.5);

		if(chip.vx>(vmax+vmin))  chip.vx=(vmax+vmin)*2-chip.vx;

		if(chip.vx<(-vmax-vmin)) chip.vx=(-vmax-vmin)*2-chip.vx;

		if(chip.vy>(vmax+vmin))  chip.vy=(vmax+vmin)*2-chip.vy;

		if(chip.vy<(-vmax-vmin)) chip.vy=(-vmax-vmin)*2-chip.vy;

		if(chip.xx<=pageX)

		{

			chip.xx=pageX;

			chip.vx=vmin+vmax*Math.random();

		}

		if(chip.xx>=pageX+pageW-chip.w)

		{

			chip.xx=pageX+pageW-chip.w;

			chip.vx=-vmin-vmax*Math.random();

		}

		if(chip.xx>=780)

		{

			chip.xx=chip.xx-0;

			chip.vx=-vmin-vmax*Math.random();

		}

		if(chip.yy<=pageY)

		{

			chip.yy=pageY;

			chip.vy=vmin+vmax*Math.random();

		}

		if(chip.yy>=pageY+pageH-chip.h)

		{

			chip.yy=pageY+pageH-chip.h;

			chip.vy=-vmin-vmax*Math.random();

		}

		if(!mie)

		{

			eval('document.'+chip.named+'.top ='+chip.yy);

			eval('document.'+chip.named+'.left='+chip.xx);

		}

		else

		{

			eval('document.all.'+chip.named+'.style.pixelLeft='+chip.xx);

			eval('document.all.'+chip.named+'.style.pixelTop ='+chip.yy);

		}

		chip.timer1=setTimeout("movechip('"+chip.named+"')",80);

	}

}



function stopme(chipname)

{

	if(brOK)

	{

		eval("chip="+chipname);

		if(chip.timer1!=null)

		{

			clearTimeout(chip.timer1)

		}

	}

}