Want to do "autocomplete" for states in a webform? Using the <datalist> tag, you can use this ...

index.html

<input list="states" name="state" size="25" placeholder="state">

<datalist id="states">
	<option value="Alabama">
	<option value="Alaska">
	<option value="Arizona">
	<option value="Arkansas">
	<option value="California">
	<option value="Colorado">
	<option value="Connecticut">
	<option value="Delaware">
	<option value="District of Columbia">
	<option value="Florida">
	<option value="Georgia">
	<option value="Hawaii">
	<option value="Idaho">
	<option value="Illinois">
	<option value="Indiana">
	<option value="Iowa">
	<option value="Kansas">
	<option value="Kentucky">
	<option value="Louisiana">
	<option value="Maine">
	<option value="Montana">
	<option value="Nebraska">
	<option value="Nevada">
	<option value="New Hampshire">
	<option value="New Jersey">
	<option value="New Mexico">
	<option value="New York">
	<option value="North Carolina">
	<option value="North Dakota">
	<option value="Ohio">
	<option value="Oklahoma">
	<option value="Oregon">
	<option value="Maryland">
	<option value="Massachusetts">
	<option value="Michigan">
	<option value="Minnesota">
	<option value="Mississippi">
	<option value="Missouri">
	<option value="Pennsylvania">
	<option value="Rhode Island">
	<option value="South Carolina">
	<option value="South Dakota">
	<option value="Tennessee">
	<option value="Texas">
	<option value="Utah">
	<option value="Vermont">
	<option value="Virginia">
	<option value="Washington">
	<option value="West Virginia">
	<option value="Wisconsin">
	<option value="Wyoming">
</datalist>