var dispOn1 = 0;
var dispOn2 = 0;

var button_0_a = new Image();button_0_a.src = "image/menu3/home_a.gif";
var button_0_b = new Image();button_0_b.src = "image/menu3/home_b.gif";
var button_1_a = new Image();button_1_a.src = "image/menu3/coinfo_a.gif";
var button_1_b = new Image();button_1_b.src = "image/menu3/coinfo_b.gif";
var button_2_a = new Image();button_2_a.src = "image/menu3/hudosan_a.gif";
var button_2_b = new Image();button_2_b.src = "image/menu3/hudosan_b.gif";
var button_3_a = new Image();button_3_a.src = "image/menu3/kenchiku_a.gif";
var button_3_b = new Image();button_3_b.src = "image/menu3/kenchiku_b.gif";
var button_4_a = new Image();button_4_a.src = "image/menu3/sekkei_a.gif";
var button_4_b = new Image();button_4_b.src = "image/menu3/sekkei_b.gif";
var button_5_a = new Image();button_5_a.src = "image/menu3/consul_a.gif";
var button_5_b = new Image();button_5_b.src = "image/menu3/consul_b.gif";
var button_6_a = new Image();button_6_a.src = "image/menu3/art_a.gif";
var button_6_b = new Image();button_6_b.src = "image/menu3/art_b.gif";

function imgChange(id, pp) {
	if (navigator.appVersion > "3") {
		var name1 = 'button_'+id;
		var name2 = 'button_'+id+'_'+pp + '.src';

        document.images[name1].src = eval(name2);
    }
}

function dispSub(id) {
	dispOn1 = 1;
	for (var i = 1; i < 2; i++) {
		var name = 'subMenu'+i;
	    if (i == id) {
			document.getElementById(name).style.visibility = 'visible';
	    }else {
			document.getElementById(name).style.visibility = 'hidden';
		}
	}

}
function colorChange(id, zz, id2) {
	if (navigator.appVersion > "3") {
	    if (zz == 'a') {
			var c = "#ffffcc";
	    }else {
			var c = "#ffffff";
		}
	document.getElementById(id).style.backgroundColor=c;
    }
}

function closeSub1(id) {
	dispOn1 = 0;
	if (dispOn2 == 0) {
		var name = 'subMenu'+id;
		document.getElementById(name).style.visibility = 'hidden';
	}
}

function dispOn(id) {
	dispOn2 = 1;
	var name = 'subMenu'+id;
	document.getElementById(name).style.visibility = 'visible';
}

function dispOff(id) {
	dispOn2 = 0;
	if (dispOn1 == 0) {
		var name = 'subMenu'+id;
		document.getElementById(name).style.visibility = 'hidden';
	}
}