function writeemail( username, domain, toplevel, classname ) { //v4.0
	var realemail = username + '@' + domain + '.' + toplevel;
	var link = '<a href="mailto:'+ realemail +'"';

	if ( classname != "" ) {
		link = link + ' class="' + classname + '"';
	}

	link = link + ' title="' + realemail + '">' + realemail + '</a>';

	document.write( link );
}

function emaillink( username, domain, toplevel, content, tag_extra ) { //v4.0
	var realemail = username + '@' + domain + '.' + toplevel;
	var link = '<a href="mailto:'+ realemail +'"';
	if ( tag_extra != '' ) {
		link = link + ' ' + tag_extra;
	}
	link = link + '>';
	document.write( link + content  +'</a>' );
}