var msgtext = "Heavy snow on a second floor window.  Melting, melting . . .                                                                                                                      ";
var cur = 0;

setInterval("setmsg()", 200);


function setmsg() 
{
	var tmsg = "";
	
	return;  // Comment out to display the message
	
	tmsg = msgtext.substr(cur, msgtext.length - cur);
	if (cur != 0)
		tmsg += msgtext.substr(0, cur);
	document.date.msg.value = tmsg;
	if (++cur >= msgtext.length)
		cur = 0;
}