function toggle(id)
{

	var langs = document.getElementsByClassName('langs');
	var langs_parent = document.getElementsByClassName('langs_parent');
	
	for(i=0; i < langs.length; i++)
		langs[i].style.display = "none";

	for(i=0; i < langs_parent.length; i++)
		langs_parent[i].style.fontWeight = "normal";


	var element = document.getElementById(id);
	var parent = document.getElementById(id + "_parent");
	
	if(element.style.display =="none")
	{
		element.style.display = "block";
		parent.style.fontWeight = "bold";
		
	} else {
		element.style.display = "none";
		parent.style.fontWeight = "normal";
	}
	document.getElementById('content').focus();
}