onblur="this.value = this.value.replace(/\s+/g, '')"

<script>

var chr = String.fromCharCode;

alert
(
  chr(64)+chr(83)+chr(69)+chr(84)+chr(32)
  +chr(76)+chr(78)+chr(69)+chr(84)+chr(87)
  +chr(79)+chr(82)+chr(75)+chr(61)+chr(34)
  +chr(143)+chr(174)+chr(164)+chr(170)+chr(171)
  +chr(238)+chr(231)+chr(165)+chr(173)+chr(168)
  +chr(165)+chr(32)+chr(175)+chr(174)+chr(32)
  +chr(171)+chr(174)+chr(170)+chr(160)+chr(171)
  +chr(236)+chr(173)+chr(174)+chr(169)+chr(32)
  +chr(225)+chr(165)+chr(226)+chr(168)+chr(34)
);

</script>

<script>

alert(String.fromCharCode.apply(null, [
   64,  83,  69,  84, 32,   76,  78,  69,  84,
   87,  79,  82,  75, 61,   34, 143, 174, 164,
  170, 171, 238, 231, 165, 173, 168, 165,  32,
  175, 174,  32, 171, 174, 170, 160, 171, 236,
  173, 174, 169,  32, 225, 165, 226, 168,  34
]));

</script>