(function ($){ 
var a, b = "getClassData"; 
$[b] = a = function (h, g, d){ 
var e, c, f = [] ; 
d = d || "-"; 
e = new RegExp("(?:^|\\s)" + g + d + "(\\S+)", "g"); 
while (c = e.exec(h)){ 
f.push(c[1]); 
} 
return f.join(" "); 
} 
; 
$.fn[b] = function (d, c){ 
return a($(this).attr("class"), d, c); 
} 
; 
} 
)(jQuery);