/*********
* UA取得 *
**********/
var NS4   = (document.layers) ? true : false;
var IE4   = (document.all)    ? true : false;
var IE5   = false;
var GECKO = false;
if (IE4) {
    if (navigator.userAgent.indexOf('MSIE 5')>0) {
        IE5 = true;
    }
}
if(navigator.userAgent.indexOf("Gecko") != -1) {
    GECKO = true;
}
var DOM = (!document.getElementById) ? (!IE4) ? (!NS4) ? -1 : 1 : 2 : 3;
var use_swatch = false;

var templ_window_onload = window.onload;
window.onload = function() {
    if (templ_window_onload != null) templ_window_onload();
    use_swatch = true;
}
/***********************
* 商品写真を切り替える *
************************/
function swap_swatch(color)
{
    if (use_swatch && document.images)
    {
        var desc_hero = document.getElementById("item-change-desc");
        desc_hero.innerHTML =  descs[color];
        
        if (extras[color] != "null") {
            var html = "<img src=\"" + swatches[color].src + "\" alt=\"" + descs[color] + "\" id=\"item-photo-img\">";
        } else {
            var html = "<img src=\"" + swatches[color].src + "\" alt=\"" + descs[color] + "\" id=\"item-photo-img\">";
        }
        var hero = document.getElementById("item-photo");
        hero.innerHTML = html;
    }
}

function swap_swatch2(color)
{
    if (use_swatch && document.images)
    {
        var desc_hero = document.getElementById("item-change-desc2");
        desc_hero.innerHTML =  descs[color];
        
        if (extras[color] != "null") {
            var html = "<img src=\"" + swatches[color].src + "\" alt=\"" + descs[color] + "\" id=\"item-photo-img\">";
        } else {
            var html = "<img src=\"" + swatches[color].src + "\" alt=\"" + descs[color] + "\" id=\"item-photo-img\">";
        }
        var hero = document.getElementById("item-photo2");
        hero.innerHTML = html;
    }
}

function swap_swatch3(color)
{
    if (use_swatch && document.images)
    {
        var desc_hero = document.getElementById("item-change-desc3");
        desc_hero.innerHTML =  descs[color];
        
        if (extras[color] != "null") {
            var html = "<img src=\"" + swatches[color].src + "\" alt=\"" + descs[color] + "\" id=\"item-photo-img\">";
        } else {
            var html = "<img src=\"" + swatches[color].src + "\" alt=\"" + descs[color] + "\" id=\"item-photo-img\">";
        }
        var hero = document.getElementById("item-photo3");
        hero.innerHTML = html;
    }
}