Fraze de tipo serpiente persigue a raton

<style>
.animado {position:absolute;visibility:visible;top:-50px;font-size:10pt;font-family:Arial;font-weight:bold;color:Blak;}
</style>
<script language=JavaScript>
var x,y
var tempo=10
var espera=0

var texto="Coloca el texto aquí "
texto=texto.split("")

var xpos=new Array()
for (i=0;i<=texto.length-1;i++) {
xpos[i]=-50
}

var ypos=new Array()
for (i=0;i<=texto.length-1;i++) {
ypos[i]=-50
}

function seguir(e){
x = (document.layers) ? e.pageX : document.body.scrollLeft+event.clientX
y = (document.layers) ? e.pageY : document.body.scrollTop+event.clientY
espera=1
}

function animar_cursor() {
if (espera==1 && document.all) {
for (i=texto.length-1; i>=1; i--) {
xpos[i]=xpos[i-1]+tempo
ypos[i]=ypos[i-1]
}
xpos[0]=x+tempo
ypos[0]=y

for (i=0; i<texto.length-1; i++) {
var camada = eval("span"+(i)+".style")
camada.posLeft=xpos[i]
camada.posTop=ypos[i]
}
}

else if (espera==1 && document.layers) {
for (i=texto.length-1; i>=1; i--) {
xpos[i]=xpos[i-1]+tempo
ypos[i]=ypos[i-1]
}
xpos[0]=x+tempo
ypos[0]=y

for (i=0; i<texto.length-1; i++) {
var camada = eval("document.span"+i)
camada.left=xpos[i]
camada.top=ypos[i]
}
}
var timer=setTimeout("animar_cursor()",30)
}

</script>
<script Language=JavaScript>
for (i=0;i<=texto.length-1;i++) {
document.write("<span id='span"+i+"' class='animado'>")
document.write(texto[i])
document.write("</span>")
}

if (document.layers){
document.captureEvents(Event.MOUSEMOVE);
}
document.onmousemove = seguir;
animar_cursor()
</script>