function kadabra(zap) {
	if (document.getElementById) {
		var abra = document.getElementById(zap).style;
		if (abra.display == "block") {
			abra.display = "none";
		} 
		
		else {
		abra.display= "block";
		}
	
		return false;
	} 
	
	else {
	return true;
	}
}