WM-independent way to focus/raise URGENT window

I would like to have a keyboard shortcut to "go to" (focus + raise) window with URGENT flag set which looks like URGENT: it appears on the taskbar (Gnome + Metacity) even if it is on desktop other than current and starts to blink (thanks to @slm for pointing it out). This window might be on other virtual desktop than current. In this particular case it is Skype windows which set urgency flag, and so they appear in alt-tab popup (metacity WM) but I can't switch to this window if it is not on current virtual desktop. I was looking into xdotool and wmctrl command with no luck. Any ideas or clues? --- **Update:** It appears, that I'm talking about _NET_WM_STATE = _NET_WM_STATE_DEMANDS_ATTENTION ...