Smooth Scrolling Text

[Patch21]

I've got some script here that can scroll text in an asp:textbox, but it is not smooth as it just jumps left by a character everytime. Does anyone know where I can get free smooth scrolling javascript?

Here is my code if anyone has any suggestions on how I can make it scroll smoother:

<SCRIPT LANGUAGE="JavaScript">

				//SCROLLING TEXT BEGIN
				
				var message=document.all['display'].value;
				var spc=10;
				var speedisplay=250;
				var rows=1;
				var cols=40;
				var len=spc*2;
				var text=message;
				var i;
				var stop=false;
				
				for (i=0;i<spc;i++) 
				{
					text=text+" ";
				}
				
				function array(n) 
				{
					this.length = n
					
					for (i=1; i <= n; i++) 
					{
						this[i] ="";
					}
					
					return this;
				}
					
				var l=text.length;
				var ll=message.length;
				var lb=new array(l)
				var lr=new array(spc*2+1)
				var lg=new array(ll)
				var lk=new array(ll)
				
				lb[0]=text;
				lb[l]=text;
				lr[0]=message;
				lg[0]=message;
				
				for (j=1;j<l;j++) 
				{
					lb[j]=lb[j-1].substring(1, l)+lb[j-1].charAt(0);
				}
				
				var i=ll;
				
				function t() 
				{
						if(i>l)
						{
							i=1;
						}
												
						document.all['display'].value=lb[i];
				
						i++;
				
						setTimeout("t()",speedisplay)
				}
				
				if (rows<=spc&&rows<=ll&&spc+ll<=cols)
				{
					t();
				}
				
				//SCROLLING TEXT END

			</SCRIPT>

There are a few variables declared that I do not use, as I've had to shorten this code. I got this from http://javascript.internet.com/scrolls/text-effect.html