6. Prepaid expenses and other receivables (Details) (USD $)	Jun. 30, 2013	Dec. 31, 2012
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Other receivables	$ 10,430	$ 10,430
Prepaid expenses	58,474	58,474
Total	$ 68,904	$ 68,904