A simple but powerful auto lookup (autocomplete)

This example is based on a jQuery plug-in: jQuery-Autocomplete which does not require jQuery-UI. It searches in one value but will return another value when the user select the value.

You may use arrow keys to select a product name. Added another example with Danish zip code to city lookup.

Find product number

to find product number .

Find danish zip code

to find city .
The data in this case is a JSON block of data. The structure is an array of objects: 
[
  {"value":"Acrobat","data": "PROD2"}
]
In this case I decided to extract the data into this array of JSON data, instead of doing AJAX request for each look-up, saving the webserver some requests.