Diseño | Elementos de la página | Añadir gadget | HTML/Javascript. Y si usas la nueva interfaz entra en Diseño | Añadir gadget | HTML/Javascript. Ahí pega esto:
<script type='text/javascript'>
//<![CDATA[
// Ojos que siguen al cursor
// Script original de Oopstudios.com
// Adaptado por ciudadblogger.com
EYES = {};
EYES.stack = [];
//
EYES.follow = function (eye) {
var el1 = document.getElementById (eye);
var el2 = el1.getElementsByTagName ("IMG");
el2 = el2[0];
el2.centre = (el1.offsetWidth - el2.offsetWidth) / 2;
el2.style.margin = el2.centre + "px 0 0 " + el2.centre + "px";
el1.maxDist = 6 * el1.offsetWidth;
EYES.stack.push ([el1, el2]);
};
EYES.mousemove = function (e) {
if (!EYES.stack.length) {
return;
}
//
var mouseX = mouseY = 0;
if (!e) var e = window.event;
if (e.pageX || e.pageY) {
mouseX = e.pageX;
mouseY = e.pageY;
} else if (e.clientX || e.clientY) {
mouseX = e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
mouseY = e.clientY + document.body.scrollTop + document.documentElement.scrollTop;
}
//
for (var e=0, l=EYES.stack.length; e<l; e++) {
var el = EYES.stack[e];
var elX = elY = 0;
if (el[0].offsetParent) {
obj = el[0];
do {
elX += obj.offsetLeft;
elY += obj.offsetTop;
} while (obj = obj.offsetParent);
}
el[0].centreX = elX + Math.round (el[0].offsetWidth / 2);
el[0].centreY = elY + Math.round (el[0].offsetHeight / 2);
var difX = mouseX - el[0].centreX;
var difY = mouseY - el[0].centreY;
var dTan = Math.atan2 (difX, difY);
var dist = Math.sqrt ((difX * difX) + (difY * difY));
dist = Math.sin ((dist > el[0].maxDist ? 1 : dist / el[0].maxDist));
var newX = el[1].centre + Math.round (Math.sin (dTan) * el[1].centre * dist);
var newY = el[1].centre + Math.round (Math.cos (dTan) * el[1].centre * dist);
el[1].style.margin = newY + "px 0 0 " + newX + "px";
}
};
if (window.attachEvent) document.attachEvent ("onmousemove", EYES.mousemove);
else document.addEventListener ("mousemove", EYES.mousemove, false);
//]]>
</script>
<div style="position:relative; height:145px; margin-bottom:30px;">
<div id="Ojo1" style="width: 132px; height: 143px; background: url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhkMb0cZa55l-Tgv6xtUltWLC_r7Og6WrT8vLdPTGr6YdvkHjcLDuLywDDVjOXmQR8nVNo31Swt1kyY-telsiNjBuLskO5tdyN4nSIzad2ZGidnqrPDcMrClDKulPXbTaCGaAp8tnBJhbU/s143/ojo1.png) center center no-repeat; position:absolute; left: 377px; top: 20px;">
<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6ni5xJe06d3gVYVmXrw3r5QrwXBYxnYG-hL3w8EL0A8J4EL9vHZmvErImhA66lpfNh4-yQ7t3a8PGbZ7Eqhg9hp80seNWIPWrRx8wrJVflE45W0i29sLvUyRaqZH7VVnW2hA4Gu0aeAY/s34/pupila.png" width="30" height="30" /></div>
<div id="Ojo2" style="width: 132px; height: 143px; background: url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiMHHmFrqBwPPp7Wy1EEA6D5g3c4vi2zLm5rO52oOF42rBlilSPzEUfcRweAFtwX7JNg_6UoeM2iHgXp568IzEnINeY3zl3T3LYr2AFBAcxkwkiHluzGWubJQWrlCZiAdUyOYeRi4AipMA/s143/ojo2.png) center center no-repeat; position:absolute; left: 485px; top: 20px;">
<img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6ni5xJe06d3gVYVmXrw3r5QrwXBYxnYG-hL3w8EL0A8J4EL9vHZmvErImhA66lpfNh4-yQ7t3a8PGbZ7Eqhg9hp80seNWIPWrRx8wrJVflE45W0i29sLvUyRaqZH7VVnW2hA4Gu0aeAY/s34/pupila.png" width="30" height="30" /></div>
</div>
<script type="text/javascript">
EYES.follow ('Ojo1');
EYES.follow ('Ojo2');
</script>
