| Creates (makes) a directory. 
         "dirname" specifies path of the directory to be created. Please note 
        that this function creates only ONE directory at a time. So if you want 
        to create nested directory tree you have to call it multiple times, for 
        example to create C:MyDirectoryMySubDirectory folder you have to call it 
        twice: 
         fmkdir( "C:\\MyDirectory" ); fmkdir( 
        "C:\\MyDirectory\\MySubDirectory" ); 
        
 Note also that it is safe to call it even if directory already exists 
        (then no change to file system is applied) 
         Returns TRUE if directory successfully created, FALSE otherwise 
        |