function changeLan(language){
	myString = new String(window.location)
	if (language == "chi") {
		rExp = /eng/g
		//rExp2 = /sim/g
		replaceString = new String("chi");
	}else if(language == "eng"){
		rExp = /chi/g
		//rExp2 = /sim/g
		replaceString = new String("eng");
	}
	result = myString.replace(rExp,replaceString);
	//result1 = new String(result)
	//result = result1.replace(rExp2,replaceString);
	window.location = result;
}