function Category(){
var number = document.form1.category1.selectedIndex;
var URL = document.form1.category1.options[number].value;
window.open(URL);
}

function Category2(){
var number = document.form2.category2.selectedIndex;
var URL = document.form2.category2.options[number].value;
window.open(URL);
}

function Category3(){
var number = document.form2.category2.selectedIndex;
var URL = document.form2.category2.options[number].value;
window.location= URL;
}

function CategorySub(){
var number = document.formSub.selectSub.selectedIndex;
var URL = document.formSub.selectSub.options[number].value;
window.location= URL;
}

// JavaScript Document