-(bool)checkDevice:(NSString*)name

{

	NSString* deviceType = [UIDevice currentDevice].model;

	NSLog(@"deviceType = %@", deviceType);

	NSRange range = [deviceType rangeOfString:name];

	return range.location != NSNotFound;

}

		NSString *  nsStrIphone=@"iPhone";

		NSString *  nsStrIpod=@"iPod";

		NSString *  nsStrIpad=@"iPad";

		bool  bIsiPhone=false;

		bool  bIsiPod=false;

		bool  bIsiPad=false;

		bIsiPhone=[self  checkDevice:nsStrIphone];

		bIsiPod=[self checkDevice:nsStrIpod];

		bIsiPad=[self checkDevice:nsStrIpad];