"During military campaigns the Ottomans established nomadic tent cities, just as the Turks had done in much earlier times. In these cities the tents of the janissaries took the place of dwellings of the common people, and larger, grander tent complexes the place of the palaces and mansions of the ruling classes. Central to these nomadic cities was the otağ-ı hümayun or imperial tent complex of the sultan, surrounded by a zokak – a screen wall made of fabric known as seraperde. This ‘walled’ tent palace was as much a symbol of his power and splendour as the stone palace in the capital."
(http://www.turkishculture.org/military/tents/otag-i-humayun-...

"The sultan's tent complex, "OtaÛ-Y HŸmayun," included everything the sultan needed in his palace. A tower, in function resembling the Tower of Justice , a tent for the treasury, a tent for the holy relics, a tent for the Council of State, a tent of solidarity, kitchen tent, storage tent, bath tent ., and even toilet tent. All these tents were surrounded by a curtain-wall of fabric, called "zokak." Just like the palace being surrounded by ramparts... This way, the sultan's tents, the men wondering about and going in and out of them were concealed; and security was provided by the guards put among these tent. Around this complex, tents of the Grand Vizier, the viziers, and other sate officials were placed, differing in size according to the occupants' ranks. The soldiers' tents around these, enhanced the security even further."
(http://www.currentmiddleages.org/tents/ottoman.htm)

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Note added at 13 hrs (2012-06-24 14:15:10 GMT)
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Well, when one is surrounded by a forest, it sometiems get tough to see the trees... :-)

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Note added at 1 day8 hrs (2012-06-25 09:15:44 GMT) Post-grading
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My pleasure! I'm glad I could help :-)