document.getElementById("chEnglish").innerHTML="<a href="+"javascript:changeLanguage('http://proto.jp/js/TumblrLoginS_E.txt')"+">English</a>"

function changeLanguage(u)
{
	sendRequest(function(o)
	{
		document.getElementById("content").innerHTML = o.responseText;
		//alert(o.responseText)
	}
	,'','GET',u);
}