/********************************
REGIST PLATFORM
********************************/
var WIN = navigator.platform == "Win32";
var MAC = navigator.platform == "MacPPC";
var NN = navigator.appName.charAt(0) == "N";
var IE = navigator.appName.charAt(0) == "M";
var FFX = (navigator.userAgent.lastIndexOf("Firefox") != -1)? true : false;
var SAF = (navigator.appVersion.lastIndexOf("Safari") != -1)? true : false;
var OPR = (navigator.userAgent.lastIndexOf("Opera") != -1)? true : false;

var NN6IE5 = (document.getElementById)?true:false;
var NN4 = (document.layers && !NN6IE5)?true:false;
var IE4 = (document.all && !NN6IE5)?true:false;
var IE5 = (navigator.userAgent.lastIndexOf("MSIE 5") != -1)?true:false;

/********************************
REGIST CODEBASE
********************************/
var baseDir = "icu-h.ed.jp/";
var cssDir = "shared/css/";
var base = "";
var dirArray = ((location.href).substr((location.href).lastIndexOf(baseDir)+1, (location.href).length)).split("/");
for(var i = 0; i < dirArray.length-2; i++) base += "../";
cssDir = base + cssDir;

/********************************
FIRST ACTION
********************************/
//Get focus for this window.
window.focus();
//Load stylesheet document by registed.
if(WIN) {
	if(IE) {
		if( IE5) document.write("<LINK REL=stylesheet HREF=\"" + cssDir + "win_ie5.css\" TYPE=\"text/css\">");
		else document.write("<LINK REL=stylesheet HREF=\"" + cssDir + "win_ie6.css\" TYPE=\"text/css\">");
	} else if(FFX) document.write("<LINK REL=stylesheet HREF=\"" + cssDir + "win_firefox.css\" TYPE=\"text/css\">");
	else document.write("<LINK REL=stylesheet HREF=\"" + cssDir + "win_firefox.css\" TYPE=\"text/css\">");
} else {
	if(IE) document.write("<LINK REL=stylesheet HREF=\"" + cssDir + "mac_ie.css\" TYPE=\"text/css\">");
	else if(SAF) document.write("<LINK REL=stylesheet HREF=\"" + cssDir + "safari.css\" TYPE=\"text/css\">");
	else if(FFX) document.write("<LINK REL=stylesheet HREF=\"" + cssDir + "mac_firefox.css\" TYPE=\"text/css\">");
	else document.write("<LINK REL=stylesheet HREF=\"" + cssDir + "mac_firefox.css\" TYPE=\"text/css\">");
}

/********************************
METHODS
********************************/
//Set image for target position.
function setImage(position, imgName, imgNum, layer) {
	if(document.layers){
		eval("document." + position).src = eval(imgName+"["+imgNum+"]").src;
		//eval("document.layers['" + layer + "'].document." + position).src = eval(imgName+"["+imgNum+"]").src;
	} else {
		eval("document." + position).src = eval(imgName+"["+imgNum+"]").src;
	}
}