//langChange.js
function setPage(){
	if(navigator.appName.charAt(0) == "M"){
		//Internet Explorer
		if(navigator.platform.indexOf('Win')>=0){
			if(navigator.userLanguage.indexOf('ja')< 0){
				document.location.href = 'http://www.icu.ac.jp/index_e.html';
			}
		}
	}else{
		//Netscape
		if(navigator.language.indexOf('ja')< 0){
			document.location.href = 'http://www.icu.ac.jp/index_e.html';
		}
	}
}

//urlReturn.js
function getPageLanguage() {
	//Homeの絶対パス
	var masterUrl = 'http://www.icu.ac.jp';
	
	//現在表示しているURIの取得
	var url = document.location.href;
	
	//length取得
	var lenMaster = masterUrl.length;
	var lenUrl = url.length;
	
	//絶対パス以降のパス,length取得
	var pathName = url.substr(lenMaster, lenUrl - lenMaster);
	var pathLen = pathName.length;
	
	//ディレクトリ名, ファイル名取得
	var dirName = pathName.substring(0,pathName.indexOf("/",2));
	var dirLen = dirName.length;
	var file = pathName.substr(dirLen , pathLen - dirLen);

	if(dirName.match(/_e/i)){
		//dirNameに_eが存在する
		var dirUri = dirName.substring(0,dirName.indexOf("_"));
		var str = masterUrl + dirUri + file;
	}else{
		//dirNameに_eが存在しない
		var str = masterUrl + dirName + '_e' + file;
	}
	document.location.href = str;
}


//rollOver.js
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 == 'btn') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_current'+ftype);	//.jpg	_current.jpg

			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('_current'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}


function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}


// Random Images
img = new Array();
img[0] = "mainImg_01.jpg";
img[1] = "mainImg_02.jpg";
img[2] = "mainImg_03.jpg";
img[3] = "mainImg_04.jpg";
img[4] = "mainImg_05.jpg";


function setMainImage(){
	var amount = img.length;
	var No = Math.floor(Math.random()*amount);
	document.write('<img src="images/' + img[No] + '" alt=\"COLLEGE OF LIBERAL ARTS ICU\" width=\"790\" height=\"254\" id=\"mainTit\" usemap=\"#Map\" />');
}