Parts of Indonesia were badly battered late Monday and Tuesday by the combination of a 7.7 earthquake and its 14 aftershocks and the explosion of a major volcano which together took over 300 lives.  The massive quake triggered a 10-foot tsunami that washed away almost 80 percent of poorly built homes in the Mentawai island chain before the aftershocks, including a 6.2 and a 5.8, struck.  Not enough people were left to handle burying the dead, and bodies littered the beaches.  On Tuesday, the Mount Merapi volcano blew its top, covering a large area with a coating of gray ash and dust and killing at least 30 people.  Residents are being urged to stay away from the area surrounding the volcano because another eruption is expected if the fragile floor of the crater collapses.