/*
 ==========================================================================

 　common.js

 ==========================================================================
 */

/*
 ==========================================================================
 　フッター年度取得
 ==========================================================================
 */
function getYear() {
    var now = new Date();
    return (now.getYear() < 2000) ? now.getYear() + 1900 : now.getYear();
}

function getCopyRight() {
    var copyRight = 'Copyright(C)' + getYear() + ' Nihon Business Data Processing Center Co.,Ltd.';
    document.getElementById("copyright").innerHTML = copyRight;
}

var current_category_no = 0;
var category_image = new Array();
var select_it_solution_image = new Array();
var select_medical_image = new Array();
var select_byoin_keiei_image = new Array();
var url = "";
category_image[0] = "images/topimage_top.png";
category_image[1] = "images/topimage_it_solution.png";
category_image[2] = "images/topimage_medical.png";
category_image[3] = "images/topimage_byoin_keiei.png";
select_it_solution_image[0] = "images/top_category_it_solution.png";
select_it_solution_image[1] = "images/top_category_it_solution_select.png";
select_medical_image[0] = "images/top_category_medical.png";
select_medical_image[1] = "images/top_category_medical_select.png";
select_byoin_keiei_image[0] = "images/top_category_byoin_keiei.png";
select_byoin_keiei_image[1] = "images/top_category_byoin_keiei_select.png";

/*
 ==========================================================================
 　TOP画面カテゴリーイメージ一定間隔変更
 ==========================================================================
 */
function changeImageInterval() {
    current_category_no++;
    current_category_no %= 4;
    changeCategoryImage(current_category_no);
}

/*
 ==========================================================================
 　TOP画面カテゴリーイメージ変更
 ==========================================================================
 */
function changeCategoryImage(changeNo) {
    current_category_no = changeNo;
    if (document.top_category_image == null) {
        return;
    }
    document.top_category_image.src = category_image[changeNo];
    document.select_it_solution_image.src = select_it_solution_image[0];
    document.select_medical_image.src = select_medical_image[0];
    document.select_byoin_keiei_image.src = select_byoin_keiei_image[0];
    if (changeNo == 1) {
        document.select_it_solution_image.src = select_it_solution_image[1];
    } else if (changeNo == 2) {
        document.select_medical_image.src = select_medical_image[1];
    } else if (changeNo == 3) {
        document.select_byoin_keiei_image.src = select_byoin_keiei_image[1];
    }
}

/*
 ==========================================================================
 　TOP画面カテゴリーぺージ変更
 ==========================================================================
 */
function changeCategoryPage() {
    if (current_category_no == 1) {
        url = "product-service/it_solution/it_solution.html";
    } else if (current_category_no == 2) {
        url = "product-service/medical/medical_support.html";
    } else if (current_category_no == 3) {
        url = "product-service/byoin_keiei/byoin_keiei.html";
    } else {
        return;
    }
    location.href = url;
}