I have a form in html and i want when someone press a number in "Phone" text box like 2106
i have a table with 3 columns "from" "to" "area " in a database-MYSQL or CSV-textfile
i want to check while pressing or when this text box lose focus to check ...
if phone > from and phone < to then show area in another text box else the other text box empty
*sorry for my english