like condition in Javascript

Hi,

I would like to extract data that included a certain word in a variable. Although when I do this

unfortunately the productname variable includes all html until it finds the word Roundup (which could be quite a way down the page)

If there a way I could in my script test if productname has the word roundup in it? i.e

String pagestart = session.getVariable( "productname" );
if(pagestart.equals("Roundup") )
DO THIS

then I would be able to capture the whole product name and only go forward with the scrape if it the test = true.

or is there another way to only capture the information I need in an extractor pattern?

thanks in advance
Kerri