Trying all possible combinations of values on a form?

hello,

i read lot of tutorials but didn't find the answer. i have a form with 1 input field with a constant string value, and a few selects. i must run tests for all possible combinations of the select values (all combinations = 300 tests). the question is, how can i modify the one recorded test in order to run it 300 times with all combinations? i don't wanna modify the values in the selenium test code manually, so how can i tell the app to find all the values on the page and create the 300 combinations?

thanks in advance

Try use this http://brettweiss.wordpress.com/2009/09/25/perform-while-loop-in-the-selenium-ide/
You can use js to get options of the drop-down lists.