diff --git a/SMILEBASIC/builtinfunctions.d b/SMILEBASIC/builtinfunctions.d
index 981833e..311f913 100644
--- a/SMILEBASIC/builtinfunctions.d
+++ b/SMILEBASIC/builtinfunctions.d
@@ -3053,6 +3053,32 @@ class BuiltinFunction
     }
     import otya.smilebasic.dialog;
     import otya.smilebasic.project;
+    static void DIALOG(PetitComputer p, wstring text, out int result)
+    {
+        auto dialog = new Dialog(p);
+        result = p.project.result = cast(DialogResult)dialog.show(text);
+    }
+    static void DIALOG(PetitComputer p, wstring text, DefaultValue!int selType, out int result)
+    {
+        selType.setDefaultValue(0);
+        auto dialog = new Dialog(p);
+        result = p.project.result = cast(DialogResult)dialog.show(text, cast(SelectionType)selType);
+    }
+    static void DIALOG(PetitComputer p, wstring text, DefaultValue!int selType, DefaultValue!wstring cap, out int result)
+    {
+        selType.setDefaultValue(0);
+        cap.setDefaultValue("■DIALOG");
+        auto dialog = new Dialog(p);
+        result = p.project.result = cast(DialogResult)dialog.show(text, cast(SelectionType)selType, cast(wstring)cap);
+    }
+    static void DIALOG(PetitComputer p, wstring text, DefaultValue!int selType, DefaultValue!wstring cap, DefaultValue!int timeout, out int result)
+    {
+        selType.setDefaultValue(0);
+        cap.setDefaultValue("■DIALOG");
+        timeout.setDefaultValue(0);
+        auto dialog = new Dialog(p);
+        result = p.project.result = cast(DialogResult)dialog.show(text, cast(SelectionType)selType, cast(wstring)cap, cast(int)timeout);
+    }
     static void DIALOG(PetitComputer p, wstring text)
     {
         auto dialog = new Dialog(p);
diff --git a/SMILEBASIC/parser.d b/SMILEBASIC/parser.d
index 3b6050c..1e681a4 100644
--- a/SMILEBASIC/parser.d
+++ b/SMILEBASIC/parser.d
@@ -1894,13 +1894,6 @@ class Parser
                         token = lex.front();
 
                         if(token.type == TokenType.RParen) break;
-                        if(token.type == TokenType.Comma)
-                        {
-                            func.addArg(new VoidExpression(lex.location));
-                            lex.popFront();
-                            token = lex.front();
-                        }
-                        else
                             func.addArg(expression());
                         if(lex.front().type == TokenType.RParen) break;
                     }