add exceptions to js and make invalid session access fatal + exception for a try/catch

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@5443 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/languages/mod_spidermonkey_odbc/mod_spidermonkey_odbc.c

@@ -433,6 +433,7 @@ static JSBool odbc_setProperty(JSContext * cx, JSObject * obj, jsval id, jsval *
 	char *name = JS_GetStringBytes(JS_ValueToString(cx, id));
 
 	if (strcmp(name, "_oDbC_dB_RoW_DaTa_")) {
+		eval_some_js("~throw new Error(\"this property cannot be changed!\");", cx, obj, vp);
 		*vp = BOOLEAN_TO_JSVAL(JS_FALSE);
 	}
 	return JS_TRUE;