function changeTab( id ) {
	var thisID = id;
	var blockID = id + "_block";
	
	document.getElementById('cyprus').className = "";
	document.getElementById('greece').className = "";
	document.getElementById('israel').className = "";
	document.getElementById('italy').className = "";
	document.getElementById('malta').className = "";
	document.getElementById('turkey').className = "";
	
	
	document.getElementById('cyprus_block').style.display = "none";	
	document.getElementById('greece_block').style.display = "none";
	document.getElementById('israel_block').style.display = "none";
	document.getElementById('italy_block').style.display = "none";
	document.getElementById('malta_block').style.display = "none";
	document.getElementById('turkey_block').style.display = "none";
	
	document.getElementById(thisID).className = "selected";
	document.getElementById(blockID).style.display = "block";
	
}