jQuery has height() en width() functions that returns the height or width in pixels as integer...
How can I get a padding or margin value of an element in p
The parseInt function has a "radix" parameter which defines the numeral system used on the conversion, so calling parseInt(jQuery('#something').css('margin-left'), 10); returns the left margin as an Integer.
parseInt(jQuery('#something').css('margin-left'), 10);
This is what JSizes use.