function activate(ctrlOn,ctrlOff) {	
	//buttons
	document.getElementById(ctrlOn).className = 'advSearchTabOn';
	document.getElementById(ctrlOff).className = 'advSearchTabOff';	
	//divs
	document.getElementById("D"+ctrlOn).style.display = 'block';
	document.getElementById("D"+ctrlOff).style.display = 'none';
	
}