function show (objid) {
	var obj;
	if (document.layers) {
		obj = documentlayers[objid];
	} else if (document.getElementById) {
		obj = document.getElementById(objid);
	} else {
		alert("not supported");
		return;
	}
	var currentclass = obj.className;
	if (currentclass == 'show') {
		obj.className = 'hide';
	} else {
		obj.className = 'show';
	}
}

function hideall () {
	var uls = document.getElementsByTagName('ul');
	for (i=0; i<uls.length; i++) {
		ul_id = uls[i].id;
		//alert(ul_id);
		if (ul_id == 'helpful' || ul_id == 'directoryPlus' || ul_id == 'preparePhoto') {
			uls[i].className = 'hide';
			lis = uls[i].getElementsByTagName('li');
			for (j=1; j<lis.length; j+=2) {
				lis[j].className = 'hide';
			}
		}
	}
}