allow connections to pgsql without password

db.php

@@ -5,7 +5,11 @@ require_once "config.php";
 function db_connect($host, $user, $pass, $db) {
 	if (DB_TYPE == "pgsql") {	
 			  
-		$string = "dbname=$db user=$user password=$pass";	
+		$string = "dbname=$db user=$user";
+	  
+		if ($pass) {
+			$string .= " password=$pass";	
+		}
 		
 		if ($host) {
 			$string .= " host=$host";