// JavaScript Document
var sTopPath = top.location.href;
var currentLang="";
 if (sTopPath .indexOf("/english/") > -1) {
	currentLang="english";
 }else{
	 currentLang = "tchinese"
 }
 function ChangeLang() {
	// alert(currentLang);
       //var sTopPath = top.location.href;
       if (currentLang == "english") {
		   
               sTopPath = sTopPath .replace("/english/", "/tchinese/");
       } else {
               sTopPath = sTopPath .replace("/tchinese/", "/english/");
       }
       top.location.href = sTopPath ;

}
function subjecta(whichSubj){
	var mySubj=whichSubj;
	document.all("subjectFrame").src="subject_"+mySubj+".html"
}
function subject(whichSubj){
	var mySubj=whichSubj;
  var oIframe = document.getElementById("subjectFrame");
  var oDoc = oIframe.contentWindow || oIframe.contentDocument;
 // if (oDoc.document){
   // oDoc = oDoc.document;
 	 //oDoc.body.style.backgroundColor = "#00f";
	 oIframe.src="subject_"+mySubj+".html";
  //	return true;
	//}
}
//for rotating images
var myPicNu=0;
function swapPics ( ) {
if (myPicNu<myPicArr.length-1){
	myPicNu+=1;
		}else{
	myPicNu=0;
	}
  myPic.src=myPicArr[myPicNu];
}

var myPicNu1=0;
function swapPics1 ( ) {
if (myPicNu1<myPicArr1.length-1){
	myPicNu1+=1;
		}else{
	myPicNu1=0;
	}
  myPic1.src=myPicArr1[myPicNu1];
}
function swapImg(){
	setInterval ("swapPics()", 1500 );
}
function swapImg1(){
	setInterval ("swapPics1()", 1500 );
}
function enlarge(whichCampus,whichPic){
myPic.src="../images/campus_"+whichCampus+"/l/"+whichPic+".jpg";
}