PHP + JQuery: Populate textarea value from dropdown.

I have a php script with sql. i want to match textarea value by selecting dropdown list. Dropdown list from a sql table column (col name : template_name ), and textarea value from column "message " (same table ) Ex : Dropdown - Textarea 1 template1 = message1 3 template2 = message2 4 template3 = message3 6 template4 = message4 [see sql file and [login to view URL] file] working like if we select "template1" in dropdown, it want to display "message1" in textarea. if we select "template3" in dropdown, it want to display "message3" in textarea [don't refresh/reload page] thats all. [I know someone have this script already,] My budget is 6$ only.