function hideall(shname) {
	var allshowhides = document.getElementById(shname).getElementsByTagName("div");

	for (var i=0; i<allshowhides.length; i++) {
		allshowhides[i].className="hide";
	}
}


function showhide(shname) {
	var allshowhides = document.getElementById(shname).getElementsByTagName("div");
	for (var i=0; i<allshowhides.length; i++) {
		allshowhides[i].onclick=function() {
			if ((this.className.indexOf("hide"))!=-1) {
				if ((this.className.indexOf("show"))!=-1) {
					hideall(shname);
				} else {
					hideall(shname);
					this.className+=" show";
				}
			}
		}
	}
}