Switch statement Question

Hi, I have a code snippet here as in the following: //Switch statements between the four options switch($string) { case "": $string= "NOT book.author='All'"; break; default: $string= $string . "AND NOT book.author='All'"; break; } This code does work, but I am wondering if it is possible in the switch statement clauses for me to do something like case does not equal to a certain author name if I don't want $string with that content to be processed. or, do I always use default in this case? Thanks in advance. Alice _________________________________________________________________ All-in-one security and maintenance for your PC.  Get a free 90-day trial! http://www.windowsonecare.com/purchase/trial.aspx?sc_cid=wl_wlmail