// Pejjite �ʐ^��
var Photo = 12;


var ii = 0;
var PhtImg = new Array();
var BtnImg1 = new Array();
var BtnImg2 = new Array();
for(i=0; i<Photo; i++){
	PhtImg[i] = new Image();
	PhtImg[i].src ="images/pjt/img_pjt"+ i +".jpg";
	BtnImg1[i] = new Image();
	BtnImg1[i].src ="images/pjt/btn_pjt"+ i +".jpg";
	BtnImg2[i] = new Image();
	BtnImg2[i].src ="images/pjt/btn_pjt"+ i +"on.jpg";
}


function SwpImg(num){
	if(ii != num){
		document.images[0].src=PhtImg[num].src;
		document.images[num+1].src=BtnImg2[num].src;
		document.images[ii+1].src=BtnImg1[ii].src;
		ii = num;
	}
}
function NextImg() {
	document.images[ii+1].src=BtnImg1[ii].src;
    ii++;
    if(ii >= PhtImg.length) ii = 0;
    document.images[0].src = PhtImg[ii].src;
    document.images[ii+1].src=BtnImg2[ii].src;
}
//ThumbnailHover
function BtnOn(num){
	document.images[num+1].src=BtnImg2[num].src;
}
function BtnOff(num){
	if(num != ii){
		document.images[num+1].src=BtnImg1[num].src;
	}
}