protected function buildCell( $day, $class = "")
	{
		$classes	= array( 'day' );
		if(	$this->getOption( 'current_year' ) == $this->getOption( 'show_year' ) &&
			$this->getOption( 'current_month' ) == $this->getOption( 'show_month' ) &&
			$this->getOption( 'current_day' ) == $day )
			$classes[]	= 'current';
		if( $class )
			$classes[]	= $class;
		if( $day )
		{
			$content	= $this->modifyDay( $day );
			$day		= $content['day'];
			if( isset( $content['class'] ) && $content['class'] )
				$classes[]	= $content['class'];
		}
		else
			$day	= "&nbsp;";
		$code	= UI_HTML_Tag::create( "div", $day, array( 'class' => implode( " ", $classes ) ) );
		return $code;
	}