/*=========
 参照ファイルの定数。
 ただし、constで宣言したときIEで動作しないためvarで宣言している。
=========*/
var out_01 = 'images/m_home.gif';
var out_02 = 'images/m_aboutus.gif';
var out_03 = 'images/m_products.gif';
var out_04 = 'images/m_skill.gif';
var out_05 = 'images/m_supports.gif';
var out_06 = 'images/m_news.gif';
var out_07 = 'images/m_link.gif';
var out_08 = 'images/m_recruit.gif';
var out_09 = 'images/m_koishijyuku.gif';

var over_01 = 'images/m_home2.gif';
var over_02 = 'images/m_aboutus2.gif';
var over_03 = 'images/m_products2.gif';
var over_04 = 'images/m_skill2.gif';
var over_05 = 'images/m_supports2.gif';
var over_06 = 'images/m_news2.gif';
var over_07 = 'images/m_link2.gif';
var over_08 = 'images/m_recruit2.gif';
var over_09 = 'images/m_koishijyuku2.gif';


var outImgs= new Object();
var overImgs = new Object();

// ディレクトリの１階層目。スワップイメージ（ロールオーバー）の設定。
function setupSwapImages1() {
    preloadImages('m_01',out_01,over_01);
    preloadImages('m_02',out_02,over_02);
    preloadImages('m_03',out_03,over_03);
    preloadImages('m_04',out_04,over_04);
    preloadImages('m_05',out_05,over_05);
    preloadImages('m_06',out_06,over_06);
    preloadImages('m_07',out_07,over_07);
	preloadImages('m_08',out_08,over_08);
	preloadImages('m_09',out_09,over_09);
}

// ディレクトリの２階層目。スワップイメージ（ロールオーバー）の設定。
function setupSwapImages2() {
    preloadImages('m_01','../' + out_01,'../' + over_01);
    preloadImages('m_02','../' + over_02,'../' + over_02);
    preloadImages('m_03','../' + out_03,'../' + over_03);
    preloadImages('m_04','../' + out_04,'../' + over_04);
    preloadImages('m_05','../' + out_05,'../' + over_05);
    preloadImages('m_06','../' + out_06,'../' + over_06);
    preloadImages('m_07','../' + out_07,'../' + over_07);
	preloadImages('m_08','../' + out_08,'../' + over_08);
	preloadImages('m_09','../' + out_09,'../' + over_09);
}
function setupSwapImages3() {
    preloadImages('m_01','../' + out_01,'../' + over_01);
    preloadImages('m_02','../' + out_02,'../' + over_02);
    preloadImages('m_03','../' + over_03,'../' + over_03);
    preloadImages('m_04','../' + out_04,'../' + over_04);
    preloadImages('m_05','../' + out_05,'../' + over_05);
    preloadImages('m_06','../' + out_06,'../' + over_06);
    preloadImages('m_07','../' + out_07,'../' + over_07);
	preloadImages('m_08','../' + out_08,'../' + over_08);
	preloadImages('m_09','../' + out_09,'../' + over_09);
}
function setupSwapImages4() {
    preloadImages('m_01','../' + out_01,'../' + over_01);
    preloadImages('m_02','../' + out_02,'../' + over_02);
    preloadImages('m_03','../' + out_03,'../' + over_03);
    preloadImages('m_04','../' + over_04,'../' + over_04);
    preloadImages('m_05','../' + out_05,'../' + over_05);
    preloadImages('m_06','../' + out_06,'../' + over_06);
    preloadImages('m_07','../' + out_07,'../' + over_07);
	preloadImages('m_08','../' + out_08,'../' + over_08);
	preloadImages('m_09','../' + out_09,'../' + over_09);
}
function setupSwapImages5() {
    preloadImages('m_01','../' + out_01,'../' + over_01);
    preloadImages('m_02','../' + out_02,'../' + over_02);
    preloadImages('m_03','../' + out_03,'../' + over_03);
    preloadImages('m_04','../' + out_04,'../' + over_04);
    preloadImages('m_05','../' + over_05,'../' + over_05);
    preloadImages('m_06','../' + out_06,'../' + over_06);
    preloadImages('m_07','../' + out_07,'../' + over_07);
	preloadImages('m_08','../' + out_08,'../' + over_08);
	preloadImages('m_09','../' + out_09,'../' + over_09);
}



// 画像のプリロード
function preloadImages (id, outImg, overImg) {
        outImgs[id] = new Image();
        outImgs[id].src = outImg;
        overImgs[id] = new Image();
        overImgs[id].src = overImg;
        // イベントの設定。
        setEvent(id);
}
// リンクイベントの設定。
function setEvent (id) {
        var image = document.getElementById(id);
        if (image.getAttribute("src")){
           image.onmouseover = function(){this.src = overImgs[id].src;}
           image.onmouseout  = function(){this.src = outImgs[id].src;}
        }
}