<script type="text/javascript"><!--
function nachuntenfuellen(o){
var wert = o.value;
var formName = o.form.name
var start = (o.name) * 1;
var stop = (o.form[o.form.length - 1].name) * 1;
for(var z = start; z < stop; z++){
document[formName][''+z].value = wert;
}
}
// --!>
</script>
Nach unten ausfüllen
<form name="formular">
<input name="1" onkeyup="nachuntenfuellen(this)"><br>
<input name="2" onkeyup="nachuntenfuellen(this)"><br>
<input name="3" onkeyup="nachuntenfuellen(this)"><br>
<input name="4" onkeyup="nachuntenfuellen(this)"><br>
<input name="5" onkeyup="nachuntenfuellen(this)"><br>
<input name="6" onkeyup="nachuntenfuellen(this)"><br>
<input name="7" onkeyup="nachuntenfuellen(this)"><br>
</form>