// JavaScript Document

var orgImg = new Array();

function ch(target,obj){
	if (orgImg[target]==null){ //変更
		orgImg[target] = $(target).src
		$(target).src = obj.src;
		new Effect.Appear(target,{
											from:0.5,
											to:1.0,
											delay:0,
											fps:60,
											duration:0.5
											});
	} else { //元に戻す
		$(target).src = orgImg[target];
		orgImg[target] = null;
		new Effect.Appear(target,{
											from:0.5,
											to:1.0,
											delay:0,
											fps:60,
											duration:0.5
											});
	}
}