Supporting maxlength for textarea using jQuery

/*
 * Plugin for jQuery JavaScript Library
 * http://dev-lessons-learned.blogspot.com/
 *
 * Copyright (c) 2009 Sandesh Tathare
 * Licensed for free use. 
 *
 * Date: 2009-08-20 10:15
 * Revision: 001
 */
$(document).ready(function (){
 maxlength();
});

function maxlength(){
 $("textarea[maxlength]").each(function(){
    var maxlength = ($(this).attr("maxlength"));
    $(this).keypress(function(event){
    if(maxlength < ($(this).val().length + 1)){
     event.preventDefault();
    }
    });
    
    $(this).keyup(function(event){
    if(maxlength < ($(this).val().length)){
     $(this).val($(this).val().substring(0,maxlength));    
    }
    });
 });
}