function email(address,domain,description)
{
	var at = String.fromCharCode(64);
	if (!description) { description = address+at+domain; }
	document.writeln("<a href='mailto:"+address+at+domain+"'>"+description+"</a>");
}
function show_hide(id)
{
    obj = document.getElementById(id);
    if (obj.style.display == 'block')
        obj.style.display = 'none';
    else
        obj.style.display = 'block';
}