Using a list box to hyperlink?

I’ve got two list boxes on a Flash made site, and I want them to open up a browser window and go to the specified site.

Currently, when I click on a button to open the site, it goes to the root folder with a erroneous folder name (called NaN).

This is what I have:

on (release){
	newSite = l-net_links.text
	
	if (newSite == "J-Mod") 
	{
		newSite = ("http://www.google.co.uk") ;
	}
	getURL(newSite, "_blank")
}

I tried this code on a combo box, and it worked fine … but I would prefer a listbox for design purposes