//=============================
//image change script
//=============================

//-----------------------------
//pre-load settings
//-----------------------------
if (document.images) {

//btn
var btn_c1 = new Image();
btn_c1.src = "images/lineup_btn_c1_off.gif";
var btn_c1_2 = new Image();
btn_c1_2.src = "images/lineup_btn_c1_on.gif";

var btn_c2 = new Image();
btn_c2.src = "images/lineup_btn_c2_off.gif";
var btn_c2_2 = new Image();
btn_c2_2.src = "images/lineup_btn_c2_on.gif";


//dg series
var dg_c1_PRD = new Image();
dg_c1_PRD.src = "images/lineup_img_dg_c1.jpg";

var dg_c2_PRD = new Image();
dg_c2_PRD.src = "images/lineup_img_dg_c2.jpg";


//da series
var da_c1_PRD = new Image();
da_c1_PRD.src = "images/lineup_img_da_c1.jpg";

var da_c2_PRD = new Image();
da_c2_PRD.src = "images/lineup_img_da_c2.jpg";

}

//common function
function act(imgName) {
	if (document.images)
	document[imgName].src = eval(imgName + '_2.src')
}

function inact(imgName) {
	if (document.images)
	document[imgName].src = eval(imgName + '.src')
}

function imageon(name)   {
	if (document.images)
	document['PRDimg'].src = eval(name + '.src')
}

function on(name)  {
	if (document.images){
	imageon(name)
	}
}


//-----------------------------
//image change function
//-----------------------------

//dg series
function chgimgDG_c1(){
	act('btn_c1');	inact('btn_c2');	on('dg_c1_PRD');
}
function chgimgDG_c2(){
	act('btn_c2');	inact('btn_c1');	on('dg_c2_PRD');
}


//da series
function chgimgDA_c1(){
	act('btn_c1');	inact('btn_c2');	on('da_c1_PRD');
}
function chgimgDA_c2(){
	act('btn_c2');	inact('btn_c1');	on('da_c2_PRD');
}