INTERIM CONSOLIDATED BALANCE SHEETS (USD $)	Apr. 30, 2013	Jul. 31, 2012
ASSETS
Cash and cash equivalents	$ 406,581	$ 246,309
Other current assets	68,481	200,552
Total Current Assets	475,062	446,861
Property and Equipment, Net	95,933	704,678
Assets Held for Investment, Net	655,906	858,377
Patents, Net	2,391,896	2,634,458
TOTAL ASSETS	3,618,797	4,644,374
LIABILITIES AND STOCKHOLDERS' DEFICIENCY
Accounts payable and accrued expenses (Note 5)	7,426,919	7,015,652
Deferred revenue	229,621	263,125
Current maturities of long-term debt (Note 11)	625,793	1,222,746
Total Current Liabilities	8,282,333	8,501,523
Long-Term Debt, Net	0	441,415
Derivative Warrant Liability (Note 10)	3,436,312	4,081,627
Total Liabilities	11,718,645	13,024,565
Commitments and Contingencies (Notes 6 and 7)
Stockholders' Deficiency (Note 9):
Common stock, $.001 par value; authorized 1,500,000,000 and 750,000,000 shares at April 30, 2013 and July 31, 2012, respectively; 500,955,195 and 354,161,297 shares issued and outstanding at April 30, 2013 and July 31, 2012, respectively	500,955	354,161
Additional paid-in capital	352,817,393	348,099,813
Deficit accumulated during the development stage	(362,713,813)	(357,611,780)
Accumulated other comprehensive income	764,617	777,615
Total Stockholders' Deficiency	(8,099,848)	(8,380,191)
TOTAL LIABILITIES AND STOCKHOLDERS' DEFICIENCY	3,618,797	4,644,374
Series A Convertible Preferred Stock [Member]
Stockholders' Deficiency (Note 9):
9% Convertible Preferred Stock	0	0
Series B Convertible Preferred Stock [Member]
Stockholders' Deficiency (Note 9):
9% Convertible Preferred Stock	0	0
Series C Convertible Preferred Stock [Member]
Stockholders' Deficiency (Note 9):
9% Convertible Preferred Stock	0	0
Series D Convertible Preferred Stock [Member]
Stockholders' Deficiency (Note 9):
9% Convertible Preferred Stock	$ 531,000	$ 0