window.onload = function() {
	if (document.getElementById) {
		hide_fof(document);
		var linkContainer = document.getElementById('required');
		var linebreak = linkContainer.appendChild(document.createElement('br'));
		var toggle = linkContainer.appendChild(document.createElement('a'));
		toggle.href = '#';
		toggle.appendChild(document.createTextNode(' Hide optional fields'));
		toggle.onclick = function() {
			var linkText = this.firstChild.nodeValue;
			this.firstChild.nodeValue = (linkText == ' Hide optional fields') ? ' Display optional fields'
					: ' Hide optional fields';
			var tmp = document.getElementsByTagName('div');
			for ( var i = 0; i < tmp.length; i++) {
				if (tmp[i].className == 'opt') {
					tmp[i].style.display = (tmp[i].style.display == 'none') ? 'block'
							: 'none';
				}
			}
			return false;
		}
	}
	
}

function show_other(form) {
	if (form.value == "other") {
		show_fof(document);
	}else
		hide_fof(document);
}

function hide_fof(d){
var t = d.getElementById("other_form");
var f = d.forms[0];
var v = f["otherLang"].value;
var lang = f["language"].value;

if (lang=="other"){
	t.style.display = "block";
	return
}
t.style.display = (v == "") ? 'none' : "block";	
}

function show_fof(d){
	var t = d.getElementById("other_form");
	t.style.display = 'block';	
	}