if( value == null ) { return null; }
	public static String getCssText(short type, String value) {		switch (type) {		case CSSPrimitiveValue.CSS_URI:			return "url(" + value + ")";		case CSSPrimitiveValue.CSS_STRING:			char q = (value.indexOf('"') != -1) ? '\'' : '"';			return q + value + q;		}		return value;	}