[рони]

Alexander Belov,

function x(a,b)
       {
         return a.length == b.length && /(?=.*I)(?=.*o)(?=.*w)(?=.*a)/.test(b)
       };
       alert(x("Iowa","oIaw"));
       alert(x("Iowa","aIow"));
       alert(x("Iowa","stateIowa"));
       alert(x("Iowa","Io wa"));