// ロールオーバー画像制御

var imgObj = new Array();
function imgSwap(name,status){
	id = name + "_" + status;
	document.images[name].src = imgObj[id].src;
}
function setImgObj(idx,src,type){
	// on status define
	idx_on = idx + "_on";
	src_on = src + "_on." + type;
	imgObj[idx_on] = new Image();
	imgObj[idx_on].src = src_on;
	// of status define
	idx_of = idx + "_of";
	src_of = src + "_of." + type;
	imgObj[idx_of] = new Image();
	imgObj[idx_of].src = src_of;
}

setImgObj('mn_cncpt','images/mn_cncpt','gif');
setImgObj('mn_rsch','images/mn_rsch','gif');
setImgObj('mn_cnsm','images/mn_cnsm','gif');
setImgObj('mn_skill','images/mn_skill','gif');
setImgObj('mn_ovsea','images/mn_ovsea','gif');
setImgObj('mn_mrkt','images/mn_mrkt','gif');


// レイヤー制御

// show
function shwLay(layId) {
	if (document.getElementById) document.getElementById(layId).style.visibility = 'visible';
	else if (document.all) document.all(layId).style.visibility = 'visible';
	else if (document.layers) document.layers[layId].visibility = 'show';
}
// hide
function hidLay(layId) {
	if (document.getElementById) document.getElementById(layId).style.visibility = 'hidden';
	else if (document.all) document.all(layId).style.visibility = 'hidden';
	else if (document.layers) document.layers[layId].visibility = 'hide';
}
// reset
function allRst() {
	hidLay('cncpt');
	hidLay('rsch');
	hidLay('cnsm');
	hidLay('skill');
	hidLay('ovsea');
	hidLay('mrkt');
	document.images['mn_cncpt'].src = imgObj['mn_cncpt_of'].src;
	document.images['mn_rsch'].src = imgObj['mn_rsch_of'].src;
	document.images['mn_cnsm'].src = imgObj['mn_cnsm_of'].src;
	document.images['mn_skill'].src = imgObj['mn_skill_of'].src;
	document.images['mn_ovsea'].src = imgObj['mn_ovsea_of'].src;
	document.images['mn_mrkt'].src = imgObj['mn_mrkt_of'].src;
}