prova con queste modifiche:

codice:
<SCRIPT type="text/JavaScript"> 
	<!-- Distributed by http://www.hypergurl.com 
	function getMessage() 
	{	var ar = new Array(20) ;
		ar[0] = "Buy a Pentium 586/90 so you can reboot faster." ;
		ar[1] = "2 + 2 = 5 for extremely large values of 2." ;
		ar[2] = "Anything that can go wrong will go wrong." ;
		ar[3] = "Computers make very fast, very accurate mistakes." ;
		ar[4] = "My software never has bugs. It just develops random features." ;
		ar[5] = "If anything simply cannot go wrong, it will anyway." ;
		ar[6] = "Best file compression around: "DEL *.*" = 100% compression" ;
		ar[7] = "The Definition of an Upgrade: Take old bugs out, put new ones in." ;
		ar[8] = "If everything seems to be going well, you have obviously overlooked something." ;
		ar[9] = "BREAKFAST.COM Halted...Cereal Port Not Responding" ;
		ar[10] = "BUFFERS=20 FILES=15 2nd down, 4th quarter, 5 yards to go!" ;
		ar[11] = "It is impossible to make anything foolproof because fools are so ingenious." ;
		ar[12] = "Bad command. Bad, bad command! Sit! Stay! Staaay..." ;
		ar[13] = "Every solution breeds new problems." ;
		ar[14] = "As a computer, I find your faith in technology amusing." ;
		ar[15] = "Two wrongs are only the beginning." ;
		ar[16] = "Shell to DOS... Come in DOS, do you copy? Shell to DOS..." ;
		ar[17] = "All computers wait at the same speed." ;
		ar[18] = "DEFINITION: Computer - A device designed to speed and automate errors." ;
		ar[19] = "Success always occurs in private, and failure in full view." ;
		var now = new Date(); 
		var sec = now.getSeconds(); 
		document.getElementById('livello').innerHTML="" + ar[sec % 20] + ""; 
	} 
// -->
</SCRIPT>
da usare cosi':

codice:
<body onload="getMessage();">
e

codice:
<table class="tableborder" width=100% cellspacing=0 cellpadding=0><tr><td class=maintitle>Quote of the Day</td></tr><tr>
<td class=row2 style="padding: 10px;">
<div id="livello"></div>
</td></tr></table>
ciao