function showHide() {
	var ids = showHide.arguments;
	for (var i=0; i<ids.length; i++){
		var elem = document.getElementById(ids[i]);
		if (elem){
			if (elem.style.display=="block"){
				elem.style.display = "none";
			}else{
				elem.style.display = "block";
			}
		}
	}
	return(false);
}