Remove WhiteSpace from copied and pasted value
HTML
<input type="text" class="white-space-is-dead" value="doron" />
<input type="text" class="white-space-is-dead" value="aaaa" />
<input type="text" class="white-space-is-dead" value="dor on" />
JavaScript
$('.white-space-is-dead').change(function() {
$(this).val($(this).val().replace(/ /g,""));
});