function convertURIText(txt) {
	try
	{
		str = txt;
		str = decodeURI(txt); 
	} catch(err) {}
	str = unescape(str);
	return str;
};

var node;
node = document.getElementById("main").getElementsByTagName("h1");
for (i = 0; i < node.length; i++) {
    node[i].innerHTML = convertURIText(node[i].innerHTML);
}

node = document.getElementById("main").getElementsByTagName("h2");
for (i = 0; i < node.length; i++) {
    node[i].innerHTML = convertURIText(node[i].innerHTML);
}

node = document.getElementById("main").getElementsByTagName("h3");
for (i = 0; i < node.length; i++) {
    node[i].innerHTML = convertURIText(node[i].innerHTML);
}

node = document.getElementById("main").getElementsByTagName("h4");
for (i = 0; i < node.length; i++) {
    node[i].innerHTML = convertURIText(node[i].innerHTML);
}