def loadMasterServerList(self, serverlistfilter, tab):
"""
Loads the Serverlist from the masterserver.
This method is executed in a background thread which is triggered by
the executeMasterServerQuery method
@param serverlistfilter - instance of the serverlistfilter profiding
query and filter paramters
@tab - the tab requesting the serverlist
"""
Log.log.debug('[GuiController] loadMasterServerList called...')
#clear the current serverlist
gobject.idle_add(tab.clearServerList)
#perform the master server query
qm = QueryManager()
tab.set_querymanager(qm)
qm.startMasterServerQueryThread(serverlistfilter, tab)
