Nlk,
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
<input type="text" onkeyup="add_text(this.value)"/><br>
<span class="text"></span><br>
<span class="text"></span><br>
<span class="text"></span>
<script>
function add_text(text){
$(".text").html(text);
}
</script>