function tilpas_menu(){
	var li_list = document.getElementById("navi").getElementsByTagName("li");
	for(i = 0; i < li_list.length; i++){
		if(li_list[i].className == "level1" || li_list[i].className == "level1_right"){
			var ul_list = li_list[i].getElementsByTagName("ul");
			var img_width = li_list[i].getElementsByTagName("a")[0].getElementsByTagName("img")[0].offsetWidth;
			if(ul_list.length > 0){
				ul_list[0].style.display = "block";
				var ul_width = ul_list[0].offsetWidth;
				ul_list[0].style.display = "";
				ul_list[0].style.marginLeft = Math.round(0-(ul_width-img_width))+"px";
			}
		}
	}
}
if (window.addEventListener){
	window.addEventListener("load", tilpas_menu, false); 
}else if (window.attachEvent){
	window.attachEvent("onload", tilpas_menu);
}else if (document.getElementById){
	window.onload = function (){
		tilpas_menu();
	}
}