function mz(){
	var dropdownIndex = document.getElementById('tipologia').selectedIndex;
	var dropdownValue = document.getElementById('tipologia')[dropdownIndex].value;
	if(document.getElementById('ric_ve').checked){
		var checkValue1 = 'Vendita';
	}
	if(document.getElementById('ric_af').checked){
		var checkValue2 = 'Affitto';
	}
	if(checkValue1=='Vendita' && checkValue2 == 'Affitto'){
		var checkValue = '';
	}else if(checkValue1){
		var checkValue = 'Affitto';
	}else if(checkValue2){
		var checkValue = 'Vendita';
	}else{
		var checkValue = '';
	}
		    JQ.getJSON("http://www.chiusano.com/modules/realestate/search/zone_cmb.php?typ="+dropdownValue+"&contr="+checkValue,
		        function(data){
		        	document.getElementById('zona').options.length = 0;
		          JQ.each(data.items, function(i,item){
		          	var newOption = document.createElement('option');
		          	newOption.value = item.valore;
		          	newOption.text = item.title.replace("°","°");
				        document.getElementById('zona').options.add(newOption);
		            /*JQ("<img/>").attr("src", item.media.m).appendTo("#images");
		            if ( i == 3 ) return false;*/
		          });
		        });
		  }