function meny(obj){
	if(document.getElementById(obj).style.visibility == "visible" || document.getElementById(obj).style.display == "hidden"){
		document.getElementById(obj).style.visibility = "hidden";
		document.getElementById(obj).style.display = "none";
		document.getElementById(obj+"b").src = "../../images/menu_open.gif";
	}else{
		document.getElementById(obj).style.visibility = "visible";
		document.getElementById(obj).style.display = "block";
		document.getElementById(obj+"b").src = "../../images/menu_close.gif";
	}
}