image1 = new Image();
	image1.src = "../img/naitei_tamago3.jpg";
	
	image2 = new Image();
	image2.src = "../img/nyusya_tamago3.jpg";

function MM_preloadImages() {
	var d=document;
	if(d.images){
		if(!d.MM_p) d.MM_p=new Array();
		var i,j=d.MM_p.length,a=MM_preloadImages.arguments;
		for(i=0; i<a.length; i++){
			if (a[i].indexOf("#")!=0){
				d.MM_p[j]=new Image;
				d.MM_p[j++].src=a[i];
			}
		}
	}
}

function MM_swapImgRestore() {
	var i,x,a=document.MM_sr;
	for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) {
	var p,i,x; 
	if(!d) d=document;
	if((p=n.indexOf("?"))>0&&parent.frames.length) {
		d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);
	}
	if(!(x=d[n])&&d.all) x=d.all[n];
	for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
	for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
	if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { 
	var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array;
	for(i=0;i<(a.length-2);i+=3)
	if ((x=MM_findObj(a[i]))!=null){
		document.MM_sr[j++]=x;
		if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];
	}
}

//画像をクリックした時
function mouse_click_naitei(){
    document.Image31.src = image1.src;
}

//画像をクリックした時
function mouse_click_nyusya(){
    document.Image32.src = image2.src;
}