var preLoadFlag = "false";

	function preLoadImg(){
		arrImgList = new Array (
			'/user_data/packages/ones/img/header/headder_1_on.gif',
			'/user_data/packages/ones/img/header/headder_2_on.gif',
			'/user_data/packages/ones/img/header/headder_4_on.gif',
			'/user_data/packages/ones/img/header/headder_5_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;
	}
	
	// サブナビの表示切替
	function naviStyleChange(ids, bcColor, color){
		document.getElementById(ids).style.backgroundColor = bcColor;
	}