code: private static int sizeToInt(String size) {
  		if (size==null) return -1;
  		if ("full".equals(size)) return 12;
  		if ("full-size".equals(size)) return 12;
  		if ("fullSize".equals(size)) return 12;
  		if ("full-width".equals(size)) return 12;
  		if ("fullWidth".equals(size)) return 12;
  		if ("half".equals(size)) return 6;
  		if ("one-third".equals(size)) return 4;
  		if ("oneThird".equals(size)) return 4;
  		if ("two-thirds".equals(size)) return 8;
  		if ("twoThirds".equals(size)) return 8;
  		if ("one-fourth".equals(size)) return 3;
  		if ("oneFourth".equals(size)) return 3;
  		if ("three-fourths".equals(size)) return 9;
  		if ("threeFourths".equals(size)) return 9;
  		if (size.length()>2) {
  			size=size.replace("columns", "");
  			size=size.replace("column", "");
  			size=size.trim();
  		}
  		return new Integer(size).intValue();
  	}
docs: Convert the specified size to int value
  @param size
  @return