/********************************
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;
var IE7 = (navigator.userAgent.lastIndexOf("MSIE 7") != -1)?true:false;

/********************************
REGIST CODEBASE
********************************/
var baseDir = "kh-univ-collabo.hit-u.ac.jp/";
var cssDir = "shared/css/browser/";
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_ie6.css\" TYPE=\"text/css\">");
		else if( IE7) document.write("<LINK REL=stylesheet HREF=\"" + cssDir + "win_ie7.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\">");
}

function init(){
 initRollovers();
 initRollovers2();
 setStripedTable();
 styleSwitchInit();
/* openBlock();*/
}

window.onload = init;

/********************************
Rollover
********************************/
function initRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('img');

	for (var i = 0; i < aImages.length; i++) {		
		if (aImages[i].className == 'imgover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_over'+ftype);

			aImages[i].setAttribute('hsrc', hsrc);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			aImages[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_over'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}

/********************************
Rollover2
********************************/
function initRollovers2() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('input');

	for (var i = 0; i < aImages.length; i++) {		
		if (aImages[i].className == 'btnover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_over'+ftype);

			aImages[i].setAttribute('hsrc', hsrc);
			
			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}	
			
			aImages[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_over'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}

//window.onload = initRollovers;

/********************************
Stripetable
********************************/
conf = {
	className : "stripedtable",
	oddlineClassName : "oddline",
	evenlineClassName : "evanline"
}

function setStripedTable(){
	var tables = getElementsByClassName(conf.className);
	for (var i=0, len=tables.length; i<len; i++){
		var table = tables[i];
		var lines = table.getElementsByTagName("tr");

		for (var j=0, llen=lines.length; j<llen; j++){
			tr = lines[j];
			if(j%2==0) {
				tr.className = conf.oddlineClassName;
			} else {
				tr.className = conf.evenlineClassName;
			}
		}
	}
}
//window.onload = setStripedTable;

function getElementsByClassName(name){
	var elements = new Array();
	var allElements = document.getElementsByTagName('*');
	for (var i=0, len=allElements.length; i<len; i++){
		if (allElements[i].className == name){
			elements.push(allElements[i]);
		}
	}
	return elements;
}

/********************************
displayBlock
********************************/
function displayBlock(id) {
  if (! document.getElementById) return;
  if (document.getElementById(id).style.display != "block")
    document.getElementById(id).style.display = "block";
  else
    document.getElementById(id).style.display = "none";
}