-(BOOL)hfs_checkIfInstalled{    
					UIApplication *myApp = [UIApplication sharedApplication];
			    NSURL *myURL = [NSURL URLWithString:@"hifutureself://message/new"];
			    
			    if ([myApp canOpenURL:myURL]) {
			        // HiFutureSelf is installed on the device 
			        return YES;
			    }else {
			        // HiFutureSelf is not installed on the device, by default we can launch the App Store.  
			        // Or you can simply comment the next line out and handle the actions yourself
			        [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=384927725&mt=8"]];
			        return NO;
			        
			    }
			}
			
			-(void)hfs_launchAppWithMessage:(NSString *)message datetime:(NSDate *)datetime{
			    if ([self hfs_checkIfInstalled]) {
			        // URL encode the message 
			        message = [message stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
			        
			        // Format NSDate properly for HiFutureSelf
			        NSDateFormatter *format = [[NSDateFormatter alloc] init];
			        [format setDateFormat:@"yyyy-MM-dd hh:mm:ss a"];
			        NSString *dateString = [format stringFromDate:datetime];
			        [format release];
			        dateString = [dateString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
			        
			        NSString *hfs_URL = [NSString stringWithFormat:@"hifutureself://message/new?message=%@&datetime=%@", message, dateString];
			        
			        // NSLog(@"Launch HFS %@", hfs_URL);
			        [[UIApplication sharedApplication] openURL:[NSURL URLWithString:hfs_URL]];
			    }
			}
			

-(IBAction)launchHFSNow{
					    
					NSTimeInterval secondsPerDay = 24 * 60 * 60;
					    	NSDate *tomorrow = [[NSDate alloc] initWithTimeIntervalSinceNow:secondsPerDay];
					                 
					    [self hfs_launchAppWithMessage:@"Our Message" datetime:tomorrow];
					    [tomorrow release];
					}