chdir error...

[bilis_money]

I want to change the directory using this command below and append $cut_name

 

which $cut_name has a name of a directory

 

here is the code below,

chdir('/model/$cut_name');

 

but an error show up here,

Warning: chdir() [function.chdir]: open_basedir restriction in effect. File(/model/$cut_name) is not within the allowed path(s): (/home/travels:/usr/lib/php:/usr/local/lib/php:/tmp) in /home/travels/public_html/model/upload.php on line 50
next.gif

 

now, how do i connect $cut_name into /model/  without generating an error.

 

thanks in advance.