private void disconnect(){
		try{
			if(sInput != null){
				sInput.close();
			}
		}
		catch(Exception e){
		}
		
		try{
			if(sOutput != null){
				sOutput.close();
			}
		}
		catch(Exception e){
		}
		
		try{
			if(socket != null){
				socket.close();
			}
		}
		catch(Exception e){
		}
		
		if(cg != null){
			cg.connectionFailed();
		}
	}