limit BuddyPress status update box

;(function(jQuery){
	jQuery.fn.clearTextLimit = function() {
		return this.each(function() {
			this.onkeydown = this.onkeyup = null;
		});
	};
	jQuery.fn.textLimit = function( limit , callback ) {
		if ( typeof callback !== 'function' ) var callback = function() {};
		return this.each(function() {
			this.limit = limit;
			this.callback = callback;
			this.onkeydown = this.onkeyup = function() {
				this.value = this.value.substr(0,this.limit);
				this.reached = this.limit - this.value.length;
				this.reached = ( this.reached == 0 ) ? true : false;
				return this.callback( this.value.length, this.limit, this.reached );
			}
		});
	};
})(jQuery);

	 jQuery('textarea').textLimit(100,function( length, limit ){
        jQuery(this).next().text( limit - length );
    });