function peekaboo(name) {

	var section_id = "section_" + name;	
	var content_id = "content_" + name;
	var style_display = document.getElementById(content_id).style.display;
	
	if (style_display == "block") {
	document.getElementById(content_id).style.display = "none";
	}
	else {
	document.getElementById(content_id).style.display = "block";
	}
}