(function ($){ 
var dirs = "Top Right Bottom Left".split(" "); 
$.each(["margin", "padding"] , function (i, hook){ 
$.cssHooks[hook] = { 
get: function (elem, computed, extra){ 
return $.map(dirs, function (dir){ 
return $.css(elem, hook + dir); 
} 
).join(" "); 
} 
,
set: function (elem, value){ 
var parts = value.split(/\s/), values = { 
"Top": parts[0],
"Right": parts[1] || parts[0],
"Bottom": parts[2] || parts[0],
"Left": parts[3] || parts[1] || parts[0]}
; 
$.each(dirs, function (i, dir){ 
elem.style[hook + dir] = values[dir]; 
} 
); 
} 
}
; 
} 
); 
} 
)(jQuery);