QuickForm Compare Rule

How can I compare more than 2 input fields? I want to compare quite a number of select elements and make sure they are all not the same. The compare validation that comes with PEAR can only do comparison with 2 elements. I need something which I will pass an array string to the first parameter of the addRule function and let all the elements in the array to be validated. I tried to create a custom rule function but it didn't work. If I have an array of elements, what will the $element_name and the $element_value of the callback function be like? I tried something like var_dump to check the variables but it didn't work. Also, I tried putting just a line return false; in the callback function but when I try on the form, no matter what, there was no error reported. That is weird. Thanks --------------------------------- Do you Yahoo!? Make Yahoo! your home page