*****Các bạn coppy toàn bộ code này baste vào trang của bạn.

<script language="JavaScript" type="text/javascript">

//Watching Eyes script- By Kurt (kurt.grigg@virgin.net)

//Script featured on Dynamic Drive

//http://tranphuongtrang.webng.com/Tailieu/ for this script and more

pic0=new Image();

pic0.src="http://tranphuongtrang.webng.com/Tailieu/eye.gif";

pic1=new Image();

pic1.src="http://tranphuongtrang.webng.com/Tailieu/pupils.gif";

var n4=(document.layers);

var n6=(document.getElementById&&!document.all);

var ie=(document.all);

var O=(navigator.appName.indexOf("Opera") != -1)?true:false;

var _d=(n4||ie)?'document.':'document.getElementById("';

var _a=(n4||n6)?'':'all.';

var _r=(n6)?'")':'';

var _s=(n4)?'':'.style';

if (n4){

document.write('<layer name="eyeball" top=0 left=0 width="69" height="34"><img src="http://tranphuongtrang.webng.com/Tailieu/eye.gif" width="69" height="34"><\/layer>');

document.write('<layer name="pupil1" top=0 left=0 width="13" height="13"><img src="http://tranphuongtrang.webng.com/Tailieu/pupils.gif" width="13" height="13"><\/layer>');

document.write('<layer name="pupil2" top:0 left=0 width="13" height="13"><img src="http://tranphuongtrang.webng.com/Tailieu/pupils.gif" width="13" height="13"><\/layer>');

}

else{

if (ie)

document.write('<div id="ic" style="position:absolute;top:0;left:0"><div style="position:relative">');

document.write('<div id="eyeball" style="position:absolute;top:100px;left:100px;width:69px;height:34px"><img src="http://tranphuongtrang.webng.com/Tailieu/eye.gif" width="69" height="34"><\/div>');

document.write('<div id="pupil1" style="position:absolute;top:0px;left:0px;width:12px;height:13px"><img src="http://tranphuongtrang.webng.com/Tailieu/pupils.gif" width="13" height="13"><\/div>');

document.write('<div id="pupil2" style="position:absolute;top:0px;left:0px;width:12px;height:13px"><img src="http://tranphuongtrang.webng.com/Tailieu/pupils.gif" width="13" height="13"><\/div>');

if (ie)

document.write('<\/div><\/div>');

}

var ym=0;

var xm=0;

if (n4||n6){

window.captureEvents(Event.MOUSEMOVE);

function mouseNS(e){

ym = e.pageY-window.pageYOffset;

xm = e.pageX;

}

if (n4)window.onMouseMove=mouseNS;

if (n6)document.onmousemove=mouseNS;

}

if (ie||O){

function mouseIEO(){

ym = (ie)?event.clientY:event.clientY-window.pageYOffset;

xm = event.clientX;

}

document.onmousemove=mouseIEO;

}

var etemp=eval(_d+_a+"eyeball"+_r+_s);

var p1temp=eval(_d+_a+"pupil1"+_r+_s);

var p2temp=eval(_d+_a+"pupil2"+_r+_s);

dy=0;

dx=0;

fy=0;

fx=0;

angle1=0;

angle2=0;

d1=0;

d2=0;

function makefollow(){

sy=(!ie)?window.pageYOffset:0;

wy=(ie)?document.body.clientHeight:window.innerHeight;

wx=(ie)?document.body.clientWidth:window.innerWidth;

//Keep eyes on screen. Netscape 6 plays up otherwise!

var chy=Math.floor(fy-34);

if (chy <= 0) chy = 0;

if (chy >= wy-34) chy = wy-34;

var chx=Math.floor(fx-34);

if (chx <= 0) chx = 0;

if (chx >= wx-69) chx = wx-69;

etemp.top=chy+sy;

etemp.left=chx;

//eyeball1 centre.

c1y=parseInt(etemp.top)+17;

c1x=parseInt(etemp.left)+17;

//eyeball2 centre.

c2y=parseInt(etemp.top)+17;

c2x=parseInt(etemp.left)+52;

dy1 = ym+sy - c1y;

dx1 = xm - c1x;

d1 = Math.sqrt(dy1*dy1 + dx1*dx1);

dy2 = ym+sy - c2y;

dx2 = xm - c2x;

d2 = Math.sqrt(dy2*dy2 + dx2*dx2);

ay1 = ym+sy - c1y;

ax1 = xm - c1x;

angle1 = Math.atan2(ay1,ax1)*180/Math.PI;

ay2 = ym+sy - c2y;

ax2 = xm - c2x;

angle2 = Math.atan2(ay2,ax2)*180/Math.PI;

dv=1.7;

p1temp.top=(d1 < 17)?(c1y-6+d1/dv*Math.sin(angle1*Math.PI/180)):(c1y-6+10*Math.sin(angle1*Math.PI/180));

p1temp.left=(d1 < 17)?(c1x-6+d1/dv*Math.cos(angle1*Math.PI/180)):(c1x-6+10*Math.cos(angle1*Math.PI/180));

p2temp.top=(d2 < 17)?(c2y-6+d2/dv*Math.sin(angle2*Math.PI/180)):(c2y-6+10*Math.sin(angle2*Math.PI/180));

p2temp.left=(d2 < 17)?(c2x-6+d2/dv*Math.cos(angle2*Math.PI/180)):(c2x-6+10*Math.cos(angle2*Math.PI/180));

}

function move(){

if (ie)ic.style.top=document.body.scrollTop;

dy=fy+=(ym-fy)*0.12-2;

dx=fx+=(xm-fx)*0.12;

makefollow();

setTimeout('move()',10);

}

window.onload=move;

//-->

</script><!--

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Chúc các bạn thành công ..................