>>> ldtp.comboselect('frmALPClock', 'cbo4', 'Beijing')
Traceback (most recent call last):
  File "<pyshell#5>", line 1, in <module>
    ldtp.comboselect('frmALPClock', 'cbo4', 'Beijing')
  File "/usr/local/lib/python2.6/site-packages/ldtp.py", line 1186, in comboselect
    raise LdtpExecutionError (str (msg))
LdtpExecutionError: "u'comboselect failed: SelectItem action on mentioned object failed.'"
>>> ldtp.comboselect('frmALPClock', 'cbo5', 'Beijing')
Traceback (most recent call last):
  File "<pyshell#6>", line 1, in <module>
    ldtp.comboselect('frmALPClock', 'cbo5', 'Beijing')
  File "/usr/local/lib/python2.6/site-packages/ldtp.py", line 1186, in comboselect
    raise LdtpExecutionError (str (msg))
LdtpExecutionError: "u'comboselect failed: SelectItem action on mentioned object failed.'"
>>> ldtp.comboselect('frmALPClock', 'cbo6', 'Beijing')
Traceback (most recent call last):
  File "<pyshell#7>", line 1, in <module>
    ldtp.comboselect('frmALPClock', 'cbo6', 'Beijing')
  File "/usr/local/lib/python2.6/site-packages/ldtp.py", line 1186, in comboselect
    raise LdtpExecutionError (str (msg))
LdtpExecutionError: "u'comboselect failed: SelectItem action on mentioned object failed.'"
>>> ldtp.comboselect('frmALPClock', 'cbo7', 'Beijing')
Traceback (most recent call last):
  File "<pyshell#8>", line 1, in <module>
    ldtp.comboselect('frmALPClock', 'cbo7', 'Beijing')
  File "/usr/local/lib/python2.6/site-packages/ldtp.py", line 1186, in comboselect
    raise LdtpExecutionError (str (msg))
LdtpExecutionError: "u'comboselect failed: SelectItem action on mentioned object failed.'"
>>> ldtp.comboselect('frmALPClock', 'cbo8', 'Beijing')
Traceback (most recent call last):
  File "<pyshell#9>", line 1, in <module>
    ldtp.comboselect('frmALPClock', 'cbo8', 'Beijing')
  File "/usr/local/lib/python2.6/site-packages/ldtp.py", line 1186, in comboselect
    raise LdtpExecutionError (str (msg))
LdtpExecutionError: "u'comboselect failed: SelectItem action on mentioned object failed.'"
>>> ldtp.comboselect('frmALPClock', 'cbo9', 'Beijing')
Traceback (most recent call last):
  File "<pyshell#10>", line 1, in <module>
    ldtp.comboselect('frmALPClock', 'cbo9', 'Beijing')
  File "/usr/local/lib/python2.6/site-packages/ldtp.py", line 1186, in comboselect
    raise LdtpExecutionError (str (msg))
LdtpExecutionError: "u'comboselect failed: SelectItem action on mentioned object failed.'"
>>> ldtp.comboselect('frmALPClock', 'cbo10', 'Beijing')
Traceback (most recent call last):
  File "<pyshell#11>", line 1, in <module>
    ldtp.comboselect('frmALPClock', 'cbo10', 'Beijing')
  File "/usr/local/lib/python2.6/site-packages/ldtp.py", line 1186, in comboselect
    raise LdtpExecutionError (str (msg))
LdtpExecutionError: "u'comboselect failed: SelectItem action on mentioned object failed.'"
>>> ldtp.comboselect('frmALPClock', 'cbo11', 'Beijing')
Traceback (most recent call last):
  File "<pyshell#12>", line 1, in <module>
    ldtp.comboselect('frmALPClock', 'cbo11', 'Beijing')
  File "/usr/local/lib/python2.6/site-packages/ldtp.py", line 1186, in comboselect
    raise LdtpExecutionError (str (msg))
LdtpExecutionError: "u'comboselect failed: SelectItem action on mentioned object failed.'"
>>> ldtp.comboselect('frmALPClock', 'cbo13', 'Beijing')
Traceback (most recent call last):
  File "<pyshell#13>", line 1, in <module>
    ldtp.comboselect('frmALPClock', 'cbo13', 'Beijing')
  File "/usr/local/lib/python2.6/site-packages/ldtp.py", line 1186, in comboselect
    raise LdtpExecutionError (str (msg))
LdtpExecutionError: "u'comboselect failed: SelectItem action on mentioned object failed.'"
>>> ldtp.comboselect('frmALPClock', 'cbo14', 'Beijing')
Traceback (most recent call last):
  File "<pyshell#14>", line 1, in <module>
    ldtp.comboselect('frmALPClock', 'cbo14', 'Beijing')
  File "/usr/local/lib/python2.6/site-packages/ldtp.py", line 1186, in comboselect
    raise LdtpExecutionError (str (msg))
LdtpExecutionError: "u'comboselect failed: SelectItem action on mentioned object failed.'"
>>> ldtp.comboselect('frmALPClock', 'cbo15', 'Beijing')
Traceback (most recent call last):
  File "<pyshell#15>", line 1, in <module>
    ldtp.comboselect('frmALPClock', 'cbo15', 'Beijing')
  File "/usr/local/lib/python2.6/site-packages/ldtp.py", line 1186, in comboselect
    raise LdtpExecutionError (str (msg))
LdtpExecutionError: "u'comboselect failed: SelectItem action on mentioned object failed.'"
>>> ldtp.comboselect('frmALPClock', 'cbo16', 'Beijing')
Traceback (most recent call last):
  File "<pyshell#16>", line 1, in <module>
    ldtp.comboselect('frmALPClock', 'cbo16', 'Beijing')
  File "/usr/local/lib/python2.6/site-packages/ldtp.py", line 1186, in comboselect
    raise LdtpExecutionError (str (msg))
LdtpExecutionError: "u'comboselect failed: SelectItem action on mentioned object failed.'"
>>> ldtp.comboselect('frmALPClock', 'cboBeijing', 'Beijing')
1