/**
 * 画像を先読み込みする
 *
 *
 *
 */

if(window.addEventListener) {
	window.addEventListener("load", cacheimg, false);
} else if(window.attachEvent) {
	window.attachEvent("onload" ,cacheimg);
}

function cacheimg() {
	var imgArr      = new Array();
	var path       = "http://www.musashi-seikotsu.com/image/side/";
	var cacheimgArr = new Array();
	
	for(var i = 1; i < 11; i++) {
		cacheimgArr.push("hbt" + i + ".png");
	}
	for(var i = 1; i < 19; i++) {
		cacheimgArr.push("sbt" + i + ".png");
	}
	
	
	for(var i = 0; i < cacheimgArr.length; i++) {
		imgArr[i] = document.createElement("img");
		imgArr[i].src = path + cacheimgArr[i];
		imgArr[i].style.display = "none";
		document.getElementsByTagName("body")[0].appendChild(imgArr[i]);
	}
	try {
		document.execCommand("BackgroundImageCache", false, true);
	} catch(err) {}
}