Update a Label Control with OnTextChange

I have asp:textbox with the ontextchange firing a function that updates my asp:label in ASP.NET 1.1

The problem is that the postback has an awful flicker and smartnav doesn't appear to work properly.  How do I update the asp:label and when the post back occurs, return to the point where the text fields are with out having to set OnFocus to the next text box?

 Is there anyway that I can use Javascript to update the label so that I don't have to do the postback.

 TIA,

 Jason
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