function expMenu(id, add) {
	if (add) id=add+id
	else id='message'+id
	var itm = null
	if (document.layers) itm = document.layers[id]
	if (document.all) itm = document.all[id]
	if (document.getElementById) itm = document.getElementById(id)
	if (itm) {
		if (itm.style) {
			if (itm.style.display == "none") {
				itm.style.display = ""
			} else {
				itm.style.display = "none"
			}
		} else itm.visibility = "show"
	}
}