//=============================================
// preload gnav-images
//=============================================
var imgfiles = ['/aichi/wp-content/themes/aichi/images/gnavi_top.jpg','/aichi/wp-content/themes/aichi/images/gnavi_top_on.jpg','/aichi/wp-content/themes/aichi/images/gnavi_news.jpg','/aichi/wp-content/themes/aichi/images/gnavi_news_on.jpg','/aichi/wp-content/themes/aichi/images/gnavi_company.jpg','/aichi/wp-content/themes/aichi/images/gnavi_company_on.jpg','/aichi/wp-content/themes/aichi/images/gnavi_products.jpg','/aichi/wp-content/themes/aichi/images/gnavi_products_on.jpg','/aichi/wp-content/themes/aichi/images/gnavi_bases.jpg','/aichi/wp-content/themes/aichi/images/gnavi_bases_on.jpg','/aichi/wp-content/themes/aichi/images/gnavi_contact.jpg','/aichi/wp-content/themes/aichi/images/gnavi_contact_on.jpg'];
var preLoads = new Array();
for(i=0;i<imgfiles.length;i++) {
	preLoads[i] = new Image();
	preLoads[i].src = imgfiles[i];
}


//=============================================
// backToTop
//=============================================
function backToTop() {
    var x1 = x2 = x3 = 0;
    var y1 = y2 = y3 = 0;

    if (document.documentElement) {
        x1 = document.documentElement.scrollLeft || 0;
        y1 = document.documentElement.scrollTop || 0;
    }

    if (document.body) {
        x2 = document.body.scrollLeft || 0;
        y2 = document.body.scrollTop || 0;
    }

    x3 = window.scrollX || 0;
    y3 = window.scrollY || 0;

    var x = Math.max(x1, Math.max(x2, x3));
    var y = Math.max(y1, Math.max(y2, y3));

    window.scrollTo(Math.floor(x / 2), Math.floor(y / 2));

    if (x > 0 || y > 0) {
        window.setTimeout("backToTop()", 25);
    }
}