CAMBIAR EL TITULO A LA HP

<script>
var repeat=1
var title=document.title = " TEXTO "
var leng=title.length
var start=1
function titlemove() {
titl=title.substring(start, leng) + title.substring(0, start)
document.title=titl
start++
if (start==leng+1) {
start=0
if (repeat==0)
return
}
setTimeout("titlemove()",140)
}
if (document.title)
titlemove()
</script>