var ver4 = (navigator.appVersion.charAt(0) >= "4");
var NN4  = ver4 && (navigator.appName == "Netscape");
var IE4 = ver4 && (navigator.appName.charAt(0) == "M");
var NN3 = ((navigator.appVersion.charAt(0) == "3") && (navigator.appName == "Netscape"));

function In(nam,num) {
	if(NN3 || NN4 || IE4) document.images[nam].src = menu[num].src;
}

function Out(nam,num) {
	if(NN3 || NN4 || IE4) document.images[nam].src = menu[num].src;
}

if(NN3 || NN4 || IE4){
	var menu = new Array();
	menu[0] = new Image();  menu[0].src = "common/img/menu01_on.gif";
	menu[1] = new Image();  menu[1].src = "common/img/menu02_on.gif";
	menu[2] = new Image();  menu[2].src = "common/img/menu03_on.gif";
	menu[3] = new Image();  menu[3].src = "common/img/menu04_on.gif";
	menu[4] = new Image();  menu[4].src = "common/img/menu05_on.gif";
	menu[5] = new Image();  menu[5].src = "common/img/menu06_on.gif";
	menu[6] = new Image();  menu[6].src = "common/img/menu07_on.gif";
	menu[7] = new Image();  menu[7].src = "common/img/menu01_off.gif";
	menu[8] = new Image();  menu[8].src = "common/img/menu02_off.gif";
	menu[9] = new Image();  menu[9].src = "common/img/menu03_off.gif";
	menu[10] = new Image();  menu[10].src = "common/img/menu04_off.gif";
	menu[11] = new Image();  menu[11].src = "common/img/menu05_off.gif";
	menu[12] = new Image();  menu[12].src = "common/img/menu06_off.gif";
	menu[13] = new Image();  menu[13].src = "common/img/menu07_off.gif";
}