function showHide(n, visible) {
	if(visible=='show') {
		document.getElementById(n+'_text').style.display = 'block';
		document.getElementById(n+'_show').style.display = 'none';
	} else {
		document.getElementById(n+'_text').style.display = 'none';
		document.getElementById(n+'_show').style.display = 'block';
	}
}