ok

codice:
<HTML><HEAD><STYLE>
.spanstyle {
	position: absolute;
	visibility: visible;
	top: -50px;
	font-size: 12pt;
	font-family: Comic Sans MS;
	font-weight: bold;
	color: #6495ED;
}
</STYLE>
<SCRIPT>

var x,y
var step=14
var flag=0

var message="Benvenuti!!! "
message=message.split("")

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

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

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

function makesnake() {
	if (flag==1 && document.all) {
    	for (i=message.length-1; i>=1; i--) {
   			xpos[i]=xpos[i-1]+step
			ypos[i]=ypos[i-1]
    	}
		xpos[0]=x+step
		ypos[0]=y
	
		for (i=0; i<message.length-1; i++) {
    		var thisspan = eval("span"+(i)+".style")
    		thisspan.posLeft=xpos[i]
			thisspan.posTop=ypos[i]
    	}
	}
	
	else if (flag==1 && document.layers) {
    	for (i=message.length-1; i>=1; i--) {
   			xpos[i]=xpos[i-1]+step
			ypos[i]=ypos[i-1]
    	}
		xpos[0]=x+step
		ypos[0]=y
	
		for (i=0; i<message.length-1; i++) {
    		var thisspan = eval("document.span"+i)
    		thisspan.left=xpos[i]
			thisspan.top=ypos[i]
    	}
	}
		var timer=setTimeout("makesnake()",30)
}
</SCRIPT>
</HEAD>
<BODY bgcolor="#000000" text="FFFFFF" onLoad="makesnake()" style="width: 100%; overflow-x: hidden; overflow-y: scroll; font-family: Arial; color: #F0FFFF">
<SCRIPT>

for (i=0;i<=message.length-1;i++) {
    document.write("<span id='span"+i+"' class='spanstyle'>")
	document.write(message[i])
    document.write("</span>")
}

if (document.layers){
	document.captureEvents(Event.MOUSEMOVE);
}
document.onmousemove = handlerMM;
</SCRIPT>
<FONT size="+1" face="verdana">

<BIG>W</BIG>hite space at the end of the message required!</P></FONT>
</BODY>
</HTML>