cascading dropdowns from single table

Hello All, What I need created are two cascading dropdowns. The SQL table looks like: ----------------------------------------------- | ID | Category | Subcategory | | 01 | Category 1 | Subcat 1 | | 02 | Category 1 | Subcat 2 | | 03 | Category 2 | Subcat 1 | | 04 | Category 2 | Subcat 2 | ------------------------------------------------ The first drop down is for the category selection, the second is for the subcategory. I will need to see finished project before payment will be sent. Thanks to everyone who applies