function FTPCallback(ftp, Eventtype, callCount, progress, total)
{
/*
ftp: the ftp client object
event type:
	-1: internal error
	1: Control Channel Connecting 
	2: Control Channel Connected
	3: Cotrol Channel Connection failed.
	4: Waiting for server message
	5: Sending command to server
	6: Server message received
	7: Controal Channel disconnected
	8: Downloading list
	9: Downloading file
	10: Uploading file.
callCont: call count of the same event.
*/
}