With this, when you visit a page in the manga section on anime planet, the search type will default to manga.
// ==UserScript==
// @name A-P search defaults to manga on manga pages
// @description With this, when you visit a page in the manga section on anime planet, the search type will default to manga.
// @namespace https://github.com/jahu00
// @include http://www.anime-planet.com/manga/*
// @version 1
// @grant none
// ==/UserScript==
{
var typeSelector = document.querySelector('#siteSearch-select');
if (typeSelector != null)
{
typeSelector.value = "manga";
}
}