function change_outer_html(id, tag, code)
{
	var oldEl = document.getElementById(id);
	var newEl = document.createElement(tag);
	newEl.innerHTML = code;
	oldEl.parentNode.replaceChild(newEl, oldEl);
}

function switch_block(id)
{
	if (document.getElementById(id).style.display == 'block')
		document.getElementById(id).style.display = 'none';
	else 	  
		document.getElementById(id).style.display = 'block'; 
}

function insert_address(el, user, server)
{
	document.getElementById(el).innerHTML = '<a href="mailto:' + user + '@' + server + '">' + user + '@' + server + '</a>';
}