var okload = 0;

function L1SWOF(imgNo){
if(okload == 1){
if(document.layers)document.layers["pmenu1m"].document.images["l1sw"+imgNo].src=imgL1SWOF[imgNo].src;
if(document.all)document.all("pmenu1m").document.images["l1sw"+imgNo].src=imgL1SWOF[imgNo].src;
if(!document.all && document.getElementById) document.images["l1sw"+imgNo].src=imgL1SWOF[imgNo].src;
}
}

function L1SWON(imgNo){
if(okload == 1){
if(document.layers)document.layers["pmenu1m"].document.images["l1sw"+imgNo].src=imgL1SWON[imgNo].src;
if(document.all)document.all("pmenu1m").document.images["l1sw"+imgNo].src=imgL1SWON[imgNo].src;
if(!document.all && document.getElementById) document.images["l1sw"+imgNo].src=imgL1SWON[imgNo].src;
}
}

function L2SWOF(imgNo){
if(okload == 1){
if(document.layers)document.layers["pmenu2m"].document.images["l2sw"+imgNo].src=imgL2SWOF[imgNo].src;
if(document.all)document.all("pmenu2m").document.images["l2sw"+imgNo].src=imgL2SWOF[imgNo].src;
if(!document.all && document.getElementById) document.images["l2sw"+imgNo].src=imgL2SWOF[imgNo].src;
}
}

function L2SWON(imgNo){
if(okload == 1){
if(document.layers)document.layers["pmenu2m"].document.images["l2sw"+imgNo].src=imgL2SWON[imgNo].src;
if(document.all)document.all("pmenu2m").document.images["l2sw"+imgNo].src=imgL2SWON[imgNo].src;
if(!document.all && document.getElementById) document.images["l2sw"+imgNo].src=imgL2SWON[imgNo].src;
}
}

function L3SWOF(imgNo){
if(okload == 1){
if(document.layers)document.layers["pmenu3m"].document.images["l3sw"+imgNo].src=imgL3SWOF[imgNo].src;
if(document.all)document.all("pmenu3m").document.images["l3sw"+imgNo].src=imgL3SWOF[imgNo].src;
if(!document.all && document.getElementById) document.images["l3sw"+imgNo].src=imgL3SWOF[imgNo].src;
}
}

function L3SWON(imgNo){
if(okload == 1){
if(document.layers)document.layers["pmenu3m"].document.images["l3sw"+imgNo].src=imgL3SWON[imgNo].src;
if(document.all)document.all("pmenu3m").document.images["l3sw"+imgNo].src=imgL3SWON[imgNo].src;
if(!document.all && document.getElementById) document.images["l3sw"+imgNo].src=imgL3SWON[imgNo].src;
}
}

function showLAYER0(){
if(okload == 1){
if(document.layers)document.layers["pmenu0"].visibility='show';
if(document.all)document.all("pmenu0").style.visibility='visible';
if(!document.all && document.getElementById) document.getElementById("pmenu0").style.visibility='visible';
}
}

function hideLAYER0(){
if(okload == 1){
if(document.layers)document.layers["pmenu0"].visibility='hide';
if(document.all)document.all("pmenu0").style.visibility='hidden';
if(!document.all && document.getElementById) document.getElementById("pmenu0").style.visibility='hidden';
}
}

function showLAYER1(){
if(okload == 1){
if(document.layers)document.layers["pmenu1t"].visibility='show';
if(document.all)document.all("pmenu1t").style.visibility='visible';
if(!document.all && document.getElementById) document.getElementById("pmenu1t").style.visibility='visible';

if(document.layers)document.layers["pmenu1m"].visibility='show';
if(document.all)document.all("pmenu1m").style.visibility='visible';
if(!document.all && document.getElementById) document.getElementById("pmenu1m").style.visibility='visible';
}
}

function hideLAYER1(){
if(okload == 1){
if(document.layers)document.layers["pmenu1t"].visibility='hide';
if(document.all)document.all("pmenu1t").style.visibility='hidden';
if(!document.all && document.getElementById) document.getElementById("pmenu1t").style.visibility='hidden';

if(document.layers)document.layers["pmenu1m"].visibility='hide';
if(document.all)document.all("pmenu1m").style.visibility='hidden';
if(!document.all && document.getElementById) document.getElementById("pmenu1m").style.visibility='hidden';
}
}

function showLAYER2(){
if(okload == 1){
if(document.layers)document.layers["pmenu2t"].visibility='show';
if(document.all)document.all("pmenu2t").style.visibility='visible';
if(!document.all && document.getElementById) document.getElementById("pmenu2t").style.visibility='visible';

if(document.layers)document.layers["pmenu2m"].visibility='show';
if(document.all)document.all("pmenu2m").style.visibility='visible';
if(!document.all && document.getElementById) document.getElementById("pmenu2m").style.visibility='visible';
}
}

function hideLAYER2(){
if(okload == 1){
if(document.layers)document.layers["pmenu2t"].visibility='hide';
if(document.all)document.all("pmenu2t").style.visibility='hidden';
if(!document.all && document.getElementById) document.getElementById("pmenu2t").style.visibility='hidden';

if(document.layers)document.layers["pmenu2m"].visibility='hide';
if(document.all)document.all("pmenu2m").style.visibility='hidden';
if(!document.all && document.getElementById) document.getElementById("pmenu2m").style.visibility='hidden';
}
}

function showLAYER3(){
if(okload == 1){
if(document.layers)document.layers["pmenu3t"].visibility='show';
if(document.all)document.all("pmenu3t").style.visibility='visible';
if(!document.all && document.getElementById) document.getElementById("pmenu3t").style.visibility='visible';

if(document.layers)document.layers["pmenu3m"].visibility='show';
if(document.all)document.all("pmenu3m").style.visibility='visible';
if(!document.all && document.getElementById) document.getElementById("pmenu3m").style.visibility='visible';
}
}

function hideLAYER3(){
if(okload == 1){
if(document.layers)document.layers["pmenu3t"].visibility='hide';
if(document.all)document.all("pmenu3t").style.visibility='hidden';
if(!document.all && document.getElementById) document.getElementById("pmenu3t").style.visibility='hidden';

if(document.layers)document.layers["pmenu3m"].visibility='hide';
if(document.all)document.all("pmenu3m").style.visibility='hidden';
if(!document.all && document.getElementById) document.getElementById("pmenu3m").style.visibility='hidden';
}
}

function layeron(){
okload = 1;
}

//　Macintosh           　->  MacOS
//　Windows95/98/NT/2000  ->　Windows
//　UNIX                  ->　UNIX
function getOSType()
{
    var uAgent  = navigator.userAgent.toUpperCase();
    if (uAgent.indexOf("MAC") >= 0) return "MacOS";
    if (uAgent.indexOf("WIN") >= 0) return "Windows";
    if (uAgent.indexOf("X11") >= 0) return "UNIX";
    return "";
}
//　Netscape Navigator ->  Netscape
//　Internet Explorer  ->　Explorer
function getBrowserName()
{
    var aName  = navigator.appName.toUpperCase();
    if (aName.indexOf("NETSCAPE") >= 0)  return "Netscape";
    if (aName.indexOf("MICROSOFT") >= 0) return "Explorer";
    return "";
}
function getBrowserVersion()
{
	var browser = getBrowserName();
	var version = 0;
	var s = 0;
	var e = 0;
	var appVer  = navigator.appVersion;
	if (browser == "Netscape")
	{
		s = appVer.indexOf(" ",0);
		version = eval(appVer.substring(0,s));
		if (version >= 5) version++;
	}
	if (browser == "Explorer")
	{
		appVer  = navigator.userAgent;
		s = appVer.indexOf("MSIE ",0) + 5;
		e = appVer.indexOf(";",s);
		version = eval(appVer.substring(s,e));
	}
	return version;
}