//ミリ秒
var fadeInDelay = 6000;
var originalSize = {height: 550, width: 800 };

// browser size fixed brobackground image script
function resizer(){
	var size = $(window).getSize();
	xscale = size.x / originalSize.width;
	yscale = size.y / originalSize.height;

	fixscale = Math.max(xscale, yscale);
	fixWidth = Math.ceil(originalSize.width * Math.max(fixscale, 1));
	$("bgimage").width = fixWidth;
	if (Browser.Engine.trident && Browser.Engine.version == 4) {
		$("wrapper").setStyle('height', size.y);
	}
}
window.onresize = resizer;

initBg = function() {
	resizer();
//	$("footer").setStyles( {visibility: 'visible'});
	$("bgimage").setStyles( {opacity: 0, visibility: 'visible'});
	var myEffect = new Fx.Tween($("bgimage"), {duration : fadeInDelay});
	myEffect.start('opacity', 1);
}

document.addEvent("domready", initBg);