// ロールオーバー画像 先読み込み
function preload() {
	rOverImg = new Array();
	subrOverImg = new Array();
	
	if (typeof document.body.style.maxHeight != "undefined") {
	// IE 7, mozilla, safari, opera 9
		for (i=1;i<9;i++){
		  rOverImg[i]=new Image();
		  rOverImg[i].src="/img/common/menu_0"+i+"_on.png";
		}
		for (k=1;k<5;k++){
		  subrOverImg[k]=new Image();
		  subrOverImg[k].src="/img/common/submenu_0"+k+"_on.png";
		}
	} else {
	// IE6, older browsers
		for (i=1;i<9;i++){
		  rOverImg[i]=new Image();
		  rOverImg[i].src="/img/common/menu_0"+i+"_on.gif";
		}
		for (k=1;k<5;k++){
		  subrOverImg[k]=new Image();
		  if(k==2||k==3){
			  subrOverImg[k].src="/img/common/submenu_0"+k+"_on.png";
		  }else{
			  subrOverImg[k].src="/img/common/submenu_0"+k+"_on.gif";
		  }
		}
	}

}

if(window.addEventListener) {  
    window.addEventListener("load", preload, false);  
}  
else if(window.attachEvent) {  
    window.attachEvent("onload", preload);  
}