var path = window.location;
path += '';


var curlang;
var chgtar;

path.indexOf('/tc/') > 0 ? curlang='/tc/': curlang='/en/';

if(curlang=='/en/'){
	chgtar = "/tc/";
}
else if(curlang=='/tc/'){
	chgtar = "/en/";
}


	var chglnk = path.substring(0, path.indexOf(curlang))+chgtar+path.substring(path.indexOf(curlang)+ curlang.length, path.length);

function chglang(){
	window.location=chglnk;
}