Selenium with Perl

My issue is : I would like to test some web page with differents browsers. I use for that Selenium with Perl also. I have for that this code enclosed here. My issue is that i cannot find ,with my test in pasted code here, one selector which is created by a css framework i used in my web pages; css framework named DevBuilder. So the selector have got a particular name from DevBuilder. Consequently, how can i do to call this selector and use it (it's a button in a table , a Datagrid from DevBuilder) . I think i have to use a function perl but iam not sure.

Thanks !!

My code here : http://ift.tt/1QmOhSw and password is 'bibi'