slashingweapon

	// Fischer-Yates shuffle
	function shuffle(array) {
		var m = array.length, t, i;
		while (m) {
			i = Math.floor(Math.random() * m--);
			t = array[m];
			array[m] = array[i];
			array[i] = t;
		}
		

slashingweapon

/**
 *  An example CORS-compliant method.  It will allow any GET, POST, or OPTIONS requests from any
 *  origin.
 *
 *  In a production environment, you probably want to be more restrictive, but this gives you
 *  the general idea of what is involved.  For the nitty-gritty low-down, read:
 *
 *  - https://developer.mozilla.org/en/HTTP_access_control
 *  - http://www.w3.org/TR/cors/
 *

slashingweapon

// Create a path to a directory, and make sure it exists.
// The iOS documentation will tell you that URLs are preferred, but there is no createDirectory method for 
// URLs.  So we have to use string paths instead.

// Create a sub-directory in the application's Documents directory.  Return the path on success, or nil on failure.
- (void)createDocumentSubdirectory:(NSString*)dirName {
	NSString *retval = nil;
	NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
	NSString *dirPath = [[paths objectAtIndex:0] stringByAppendingPathComponent:dirName];
	NSFileManager *fm = [[NSFileManager alloc] init];