function toggle(obj,s) {
	var el = document.getElementById(obj);
	if (s == '') {
		if ( el.style.display != 'none' ) {
			el.style.display = 'none';
		}
		else {
			el.style.display = '';
		}
	} else if (s == 'show') {
		el.style.display = '';
	} else if (s == 'hide') {
		el.style.display = 'none';
	}
	
}