codice:
<script LANGUAGE="javascript"> 
<!-- 
function textCounter(field, countfield, maxlimit) { 
	if (field.value.length > maxlimit) 
		field.value = field.value.substring(0, maxlimit); 
	else 
		countfield.value = maxlimit - field.value.length; 
} 

// End --> 
</script>
codice:
<textarea name="recensione" cols="50" rows="8" onKeyDown="textCounter(this.form.recensione,this.form.remLen,1000);" onKeyUp="textCounter(this.form.recensione,this.form.remLen,1000);" onClick="textCounter(this.form.recensione,this.form.remLen,1000);"></textarea>
<input readonly type=text name=remLen size=3 maxlength=3 value="1000"> caratteri rimanenti