function showHide(list){
	if (document.getElementById) {
		if (document.getElementById(list).style.display=='none') {
			document.getElementById(list).style.display='block';
			document.title.src = "images/btn1.gif";
		} else {
			document.getElementById(list).style.display='none';
			document.title.src = "images/btn2.gif";
		}
	}
}