'Undefined Variable' help...

OK, I have a problem calling a function using default variables. In 'gallery.inc': --------------------------------- function gallery ($filename, $first = 1, $tablewidth = 4, $total = 20) { echo "Filename: $filename, First image: $first, Table Width: $tablewidth, Total: $total"; } --------------------------------- In 'gallery.php': --------------------------------- include('/path/to/gallery.inc'); ... gallery('test.txt',$first,$width,$images); --------------------------------- $first, $width and $images are variables that are defined by the URL, as if they were submitted through a form using HTTP GET, and they are designed to be used like that. My problem is, if I don't define those variables in the URL when I run gallery.php, PHP will come back with 'Undefined Variable' errors. Is there any way I can prevent that from happening? TIA! -- Uchendu Nwachukwu unndunn AT yahoo DOT com - www.unndunn.com