--- a/JavaScriptQuasimode.m	Sun Apr 11 22:16:41 2010 -0700
+++ b/JavaScriptQuasimode.m	Sun Apr 11 22:28:00 2010 -0700
@@ -38,10 +38,10 @@
   ENSURE_ARGCOUNT(2);
 
   if (!JSValueIsNumber(ctx, arguments[0]))
-    RAISE_ERROR("first argument must be a number");
+    RAISE_ERROR("first argument (width) must be a number");
 
   if (!JSValueIsNumber(ctx, arguments[1]))
-    RAISE_ERROR("second argument must be a number");
+    RAISE_ERROR("second argument (height) must be a number");
 
   Quasimode *quasimode = (Quasimode *) JSObjectGetPrivate(thisObject);
   if (!quasimode)
@@ -61,6 +61,39 @@
 }
 
 static JSValueRef
+method_setPosition(JSContextRef ctx,
+                   JSObjectRef function,
+                   JSObjectRef thisObject,
+                   size_t argumentCount,
+                   const JSValueRef arguments[],
+                   JSValueRef* exception)
+{
+  ENSURE_ARGCOUNT(2);
+
+  if (!JSValueIsNumber(ctx, arguments[0]))
+    RAISE_ERROR("first argument (x) must be a number");
+
+  if (!JSValueIsNumber(ctx, arguments[1]))
+    RAISE_ERROR("second argument (y) must be a number");
+
+  Quasimode *quasimode = (Quasimode *) JSObjectGetPrivate(thisObject);
+  if (!quasimode)
+    return raiseError(ctx, exception,
+                      "method must be invoked on a Quasimode instance");
+
+  int x = (int) JSValueToNumber(ctx, arguments[0], NULL);
+  int y = (int) JSValueToNumber(ctx, arguments[1], NULL);
+
+  if (x < 0) RAISE_ERROR("x must be non-negative");
+  if (y < 0) RAISE_ERROR("y must be non-negative");
+
+  NSPoint point = {x, y};
+
+  [[quasimode window] setFrameOrigin: point];
+  return JSValueMakeUndefined(ctx);
+}
+
+static JSValueRef
 method_log(JSContextRef ctx,
            JSObjectRef function,
            JSObjectRef thisObject,
@@ -71,7 +104,7 @@
   ENSURE_ARGCOUNT(1);
 
   if (!JSValueIsString(ctx, arguments[0]))
-    RAISE_ERROR("first argument must be a string");
+    RAISE_ERROR("first argument (message) must be a string");
 
   JSStringRef str = JSValueToStringCopy(ctx, arguments[0], NULL);
   size_t len = JSStringGetMaximumUTF8CStringSize(str);
@@ -83,8 +116,9 @@
 }
 
 static JSQuasimodeMethod jsQuasimodeMethods[] = {
-  {"setSize", method_setSize},
-  {"log", method_log},
+  {"setSize",     method_setSize},
+  {"setPosition", method_setPosition},
+  {"log",         method_log},
   {NULL, NULL}
 };