Fix. Poll several mail at once.

Problem causes by fax_send.php which change current dir and second call can not finding libraries.

app/fax/fax_emails.php

@@ -210,8 +210,12 @@ if (sizeof($result) != 0) {
 					}
 
 					//send fax
+					$cwd = getcwd();
 					$included = true;
 					require("fax_send.php");
+					if($cwd){
+						chdir($cwd);
+					}
 
 					//reset variables
 					unset($fax_numbers);