function sw(object, object2){
	if(document.getElementById(object).style.display=='none'){
		document.getElementById(object).style.display='block';
		document.getElementById(object2).src="/images/b_up.gif";
	} else {
		document.getElementById(object).style.display='none';
		document.getElementById(object2).src="/images/b_down.gif";		
	} 
}