/** ファイルパス */
  var m_imgPath = '../../common/gm_img/';
  
  /** メニュー画像基本データ */
  var m_start 	= {
  			'name': m_imgPath + 'gm_artizalogo',
			'id': 'imgStart'
		};
  var m_LTE	= {
  			'name': m_imgPath + 'gm_lte',
			'id': 'imgLTE'
		};
  var m_WiMax = {
  			'name': m_imgPath + 'gm_wimax',
			'id': 'imgWiMAX'
		};
  var m_Ethernet = {
  			'name': m_imgPath + 'gm_ethernet',
			'id': 'imgEthernet'
		};
  var m_Other = {
  			'name': m_imgPath + 'gm_other',
			'id': 'imgOther'
		};
  var m_Company = {
  			'name': m_imgPath + 'gm_company',
			'id': 'imgCompany'
		};
  var m_Recruit = {
  			'name': m_imgPath + 'gm_recruit',
			'id': 'imgRecruit'
		};
  var m_IR = {
  			'name': m_imgPath + 'gm_ir',
			'id': 'imgIR'
		};
  var m_Contacts = {
  			'name': m_imgPath + 'gm_contact',
			'id': 'imgContacts'
		};
  var m_Last = {
  			'name': m_imgPath + 'gm_right',
			'id': 'imgLast'
		};

  /** 各メニューのひもづけを定義 */
  var m_MenuMaster = {
  			'lte': {
				'left': m_start,
				'center': m_LTE,
				'right': m_WiMax
			},
  			'wimax': {
				'left': m_LTE,
				'center': m_WiMax,
				'right': m_Ethernet
			},
  			'ethernet': {
				'left': m_WiMax,
				'center': m_Ethernet,
				'right': m_Other
			},
  			'other': {
				'left': m_Ethernet,
				'center': m_Other,
				'right': m_Company
			},
  			'company': {
				'left': m_Other,
				'center': m_Company,
				'right': m_Recruit
			},
  			'recruit': {
				'left': m_Company,
				'center': m_Recruit,
				'right': m_IR
			},
  			'ir': {
				'left': m_Recruit,
				'center': m_IR,
				'right': m_Contacts
			},
  			'contact': {
				'left': m_IR,
				'center': m_Contacts,
				'right': m_Last
			}
  		};

  // 初期選択コード
  var m_c1 = '';
  var m_c2 = '';
  function loadImages(c1, c2) {
  	m_c1 = c1;
	m_c2 = c2;
  	changeImages(c1, c2);
  }
  
  function changeImages(c1, c2) {
	if (c1 != '') {
		_clearImages();
		var obj = null;
		// left
		obj = document.getElementById(m_MenuMaster[c1].left.id);
		obj.src = m_MenuMaster[c1].left.name + '-r.jpg';
		// center
		obj = document.getElementById(m_MenuMaster[c1].center.id);
		obj.src = m_MenuMaster[c1].center.name + '-o.jpg';
		// right
		obj = document.getElementById(m_MenuMaster[c1].right.id);
		obj.src = m_MenuMaster[c1].right.name + '-l.jpg';
		
		if (c2 != '') {
			obj = document.getElementById(c1 + '_' + c2);
			obj.innerHTML = '<span class="menu_on">' + obj.innerHTML + '</span>';
		}
	}
  }
  
  function clearImages() {
  	_clearImages();
	changeImages(m_c1, m_c2);
  }
  
  function _clearImages() {
  	var obj;
  	for (var row in m_MenuMaster) {
		obj = document.getElementById(m_MenuMaster[row].center.id);
		obj.src = m_MenuMaster[row].center.name + ".jpg";
	}
	obj = document.getElementById(m_start.id);
	obj.src = m_start.name + ".jpg";
	obj = document.getElementById(m_Last.id);
	obj.src = m_Last.name + ".jpg";
  }
  
  // パスは絶対パスで指定する。
  function imagePreLoad() {
  	MM_preloadImages(
'/common/gm_img/gm_artizalogo-r.jpg','/common/gm_img/gm_artizalogo.jpg',
'/common/gm_img/gm_right-l.jpg','/common/gm_img/gm_right.jpg',
'/common/gm_img/gm_company-l.jpg','/common/gm_img/gm_company-r.jpg','/common/gm_img/gm_company-o.jpg','/common/gm_img/gm_company.jpg',
'/common/gm_img/gm_contact-l.jpg','/common/gm_img/gm_contact-r.jpg','/common/gm_img/gm_contact-o.jpg','/common/gm_img/gm_contact.jpg',
'/common/gm_img/gm_ethernet-l.jpg','/common/gm_img/gm_ethernet-r.jpg','/common/gm_img/gm_ethernet-o.jpg','/common/gm_img/gm_ethernet.jpg',
'/common/gm_img/gm_ir-l.jpg','/common/gm_img/gm_ir-r.jpg','/common/gm_img/gm_ir-o.jpg','/common/gm_img/gm_ir.jpg',
'/common/gm_img/gm_lte-l.jpg','/common/gm_img/gm_lte-r.jpg','/common/gm_img/gm_lte-o.jpg','/common/gm_img/gm_lte.jpg',
'/common/gm_img/gm_recruit-l.jpg','/common/gm_img/gm_recruit-r.jpg','/common/gm_img/gm_recruit-o.jpg','/common/gm_img/gm_recruit.jpg',
'/common/gm_img/gm_wimax-l.jpg','/common/gm_img/gm_wimax-r.jpg','/common/gm_img/gm_wimax-o.jpg','/common/gm_img/gm_wimax.jpg');}