function showhide(aDiv) {

	

	var state = document.getElementById(aDiv).style.display;

	

	if (state == 'block') {

		state = 'none';

	} else {

		state = 'block';

	}

		

	if (document.all) { //IS IE 4 or 5 (or 6 beta)

		eval( "document.all." + aDiv + ".style.display = state");

	}



	if (document.layers) { //IS NETSCAPE 4 or below

		document.layers[aDiv].display = state;

	}



	if (document.getElementById && !document.all) {

		document.getElementById(aDiv).style.display = state;

	}

}