//-------------------------------------------------------------------->
//- file   : css.js
//- admin  : MEGA-D Inc. Kimoto Tatsuro
//- update : 20050907
//- desc   : browser check for css
//- var    : 2.0
//-------------------------------------------------------------------->

function getBrowserName()
{
	var aName  = navigator.appName.toUpperCase();
	var uName = navigator.userAgent.toUpperCase();
	if (uName.indexOf("SAFARI") >= 0)  return "Safari";
	if (uName.indexOf("OPERA") >= 0)  return "Opera";
	if (aName.indexOf("NETSCAPE") >= 0)  return "Netscape";
	if (aName.indexOf("MICROSOFT") >= 0) return "Explorer";
	if (uName.indexOf("GECKO") >= 0) return "Gecko";
	return "";
}

function getBrowserVersion()
{
	var browser = getBrowserName();
	var version = 0;
	var s = 0;
	var e = 0;
	var appVer  = navigator.appVersion;
	var uName  = navigator.userAgent.toUpperCase();
	if (browser == "Explorer")
	{
		appVer  = navigator.userAgent;
		s = appVer.indexOf("MSIE ",0) + 5;
		e = appVer.indexOf(";",s);
		version = eval(appVer.substring(s,e));
	}
	if (browser == "Netscape")
	{
		s = appVer.indexOf(" ",0);
		version = eval(appVer.substring(0,s));
		if (version >= 5) version++;
	}
	if (browser == "Safari")
	{
		version = eval(appVer.substring(0,3));
	}
	if (browser == "Opera")
	{
		version = 5;
	}
	if (browser == "Gecko")
	{
		version = 5;
	}
	return version;
}

function linkCSS(layerNo) {
	browser = getBrowserName();
	version = getBrowserVersion();

	if (layerNo == 1)  { dirName = "./";}
	if (layerNo == 2)  { dirName = "../";}
	if (layerNo == 3)  { dirName = "../../";}
	if (layerNo == 4)  { dirName = "../../../";}
		if (layerNo == 666)  { dirName = "../../";}
	if (layerNo == -1) { dirName = "../../../../jp/";}

	if (version >= 5)  {
		dirName += "css/default.css";
	} else{
		dirName += "css/simple.css";
	}
	document.write('<link rel=\"stylesheet\" href=\"' + dirName + '\" type=\"text/css\">');
}