if (document.images) {       // プリロード	
	// 50s
	meter50s = new Image(58, 60);
	meter50s.src = '../../image/meter/meter_02.gif';
	meter50sOn = new Image(58, 60);
	meter50sOn.src = '../../image/meter/meter_02on.gif';
	// 60s
	meter60s = new Image(58, 60);
	meter60s.src = '../../image/meter/meter_03.gif';
	meter60sOn = new Image(58, 60);
	meter60sOn.src = '../../image/meter/meter_03on.gif';
	// 70s
	meter70s = new Image(58, 60);
	meter70s.src = '../../image/meter/meter_04.gif';
	meter70sOn = new Image(58, 60);
	meter70sOn.src = '../../image/meter/meter_04on.gif';
	// 80s
	meter80s = new Image(58, 60);
	meter80s.src = '../../image/meter/meter_05.gif';
	meter80sOn = new Image(58, 60);
	meter80sOn.src = '../../image/meter/meter_05on.gif';		
// 90s
	meter90s = new Image(58, 60);
	meter90s.src = '../../image/meter/meter_06.gif';
	meter90sOn = new Image(58, 60);
	meter90sOn.src = '../../image/meter/meter_06on.gif';
// 00s
	meter00s = new Image(58, 60);
	meter00s.src = '../../image/meter/meter_07.gif';
	meter00sOn = new Image(58, 60);
	meter00sOn.src = '../../image/meter/meter_07on.gif';
}

function swapImg(name) {     // スワップ
	if (document.images) {
		document.images[name].src = eval("meter" + name + "On.src");
	}
}
function restImg(name) {     // リストア
	if (document.images) {
		document.images[name].src = eval("meter" + name + ".src");
	}
}