Open new tab with URL (in the background) in Chrome Applescript

openLink.scpt

on run argv
	set passedInURL to (item 1 of argv)
	tell application "Google Chrome"
		set activeIndex to get active tab index of window 1
		tell window 1
			set newTab to make new tab with properties {URL:passedInURL}
		end tell
		set active tab index of window 1 to activeIndex
	end tell
end run