var preLoadFlag = "false";

	function preLoadImg(){
		arrImgList = new Array (
			"/img/common/aboutus_on.gif","/img/common/q_a_on.gif","/img/common/contact_on.gif","/img/common/navi_philosophy_on.gif",
			"/img/common/navi_strength_on.gif","/img/common/navi_partner_on.gif","/img/common/navi_products_on.gif","/img/common/navi_wanted_on.gif",
			"/img/aboutus/navi_history_on.gif","/img/aboutus/navi_access_on.gif","/img/aboutus/navi_aboutus_on.gif","/img/common/official_on.gif",
			"/img/q_a/navi_company_on.gif","/img/q_a/navi_recruit_on.gif",
			"/img/wanted/b_creative_on.gif","/img/wanted/b_marketing_on.gif","/img/wanted/b_process_on.gif","/img/wanted/b_rikunavi_on.gif",
			"/img/wanted/b_system_on.gif","/img/wanted/navi_about_on.gif","/img/wanted/navi_process_on.gif","/img/wanted/step01_on.gif","/img/wanted/step02_on.gif","/img/wanted/step02_b_on.gif",
			"/img/products/ebis_on.jpg","/img/products/eccube_on.jpg","/img/products/navi_ebis_on.gif","/img/products/navi_eccube_on.gif",
			"/img/products/navi_products_on.gif","/img/products/navi_solution_on.gif","/img/products/solution_on.jpg",
			"/img/symposium/navi_symposium_on.gif","/img/symposium/navi_profile_on.gif","/img/symposium/navi_theme.gif",
			"/img/aboutus/print_on.gif","/img/common/detail_on.gif",
			"/img/strength/navi_organization_on.gif","/img/strength/navi_strength_on.gif","/img/strength/navi_technology_on.gif","/img/strength/navi_zeal_on.gif",
			"/img/strength/navi_office_on.gif","/img/strength/navi_osaka_on.gif",
			"/img/partner/navi_partner_on.gif","/img/partner/navi_interview_on.gif","/img/partner/navi_member_on.gif",
			"/img/common/01under_on.gif","/img/common/02under_on.gif","/img/common/03under_on.gif","/img/common/04under_on.gif",
			"/img/common/05under_on.gif","/img/common/06under_on.gif","/img/common/07under_on.gif",
			"/img/common/prev_on.gif","/img/common/next_on.gif",
			"/img/top/blog01_on.gif","/img/top/blog02_on.gif","/img/top/blog03_on.gif","/img/top/blog04_on.gif","/img/top/blog05_on.gif",
			"/img/top/blog06_on.gif",
			"/img/top/iwata_on.gif","/img/top/technology_on.gif","/img/top/marketing_on.gif","/img/top/creative_on.gif","/img/top/management_on.gif","/img/top/naitei_on.gif",
			"/img/common/page_left_on.gif","/img/common/page_right_on.gif","/img/common/pageunder_left_on.gif","/img/common/pageunder_right_on.gif",
			"/img/contact/confirm_on.gif","/img/contact/comp_on.gif","/img/contact/back_on.gif","/img/contact/toppage_on.gif",
			"/img/symposium/bk01_on.gif","/img/symposium/bk02_on.gif","/img/symposium/bk03_on.gif","/img/symposium/profile_on.gif.gif",
			"/img/partner/navi_member01_on.gif","/img/partner/navi_member02_on.gif","/img/partner/navi_member03_on.gif",
			"/img/partner/navi_member04_on.gif","/img/partner/navi_member05_on.gif","/img/partner/navi_member06_on.gif"
		);
		arrPreLoad = new Array();
		for (i in arrImgList) {
			arrPreLoad[i] = new Image();
			arrPreLoad[i].src = arrImgList[i];
		}
		preLoadFlag = "true";
	}

	function chgImg(fileName,imgName){
		if (preLoadFlag == "true") {
			document.images[imgName].src = fileName;
		}
	}

	function chgImgImageSubmit(fileName,imgObj){
		imgObj.src = fileName;
	}