var brw_v = navigator.appVersion.charAt(0);
var brw_n = navigator.appName.charAt(0);
var iIE4 = false;
var iNN4 = false;
if((brw_v >= 4)&&(brw_n == "M"))iIE4 = true;
if((brw_v >= 4)&&(brw_n == "N"))iNN4 = true;

var Laymax = 6;
var ImgOffset = 6;

var Lflag = false;
var Cflag = false;
var ImgLayOut = new Array();
var ImgLayOn = new Array();

function Init(){
	for(i = 1; i <= Laymax; i++){
		ImgCheck(i);
		ImgLayOut[i] = new Image();
		ImgLayOn[i] = new Image();
		ImgLayOut[i].src = "image/menu_a" + i + ".gif"
		ImgLayOn[i].src = "image/menu_b" + i + ".gif"
		if(Cflag)document.images[i + ImgOffset - 1].src = ImgLayOut[i].src;
	}
	Lflag = true;
}

function MouseON(n){
	ImgCheck(n);
	if(Cflag)document.images[n + ImgOffset - 1].src = ImgLayOn[n].src;
}

function MouseOUT(n){
	ImgCheck(n);
	if(Cflag)document.images[n + ImgOffset - 1].src = ImgLayOut[n].src;
}

function ImgCheck(n){
	Cflag = true;
	if(n < 0 || n > Laymax)Cflag = false;
}



/*新規ウィンドウを開く*/
function disp1(url){

	window.open(url, "window_name", "width=600,height=600,scrollbars=yes,menubar=yes,left=0,top=0");

}