function checkCAP() {
	var xmlHttp;
	try {  
		// Firefox, Opera 8.0+, Safari  
		xmlHttp=new XMLHttpRequest();  
	}
	catch (e) {  
	// Internet Explorer  
		try {
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
  		catch (e) {    
			try {      
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}
    		catch (e) {
				alert("Your browser does not support AJAX!");      
	  			return false;
			}
		}
	}
	
	
	xmlHttp.onreadystatechange=function() {
		if(xmlHttp.readyState == 4) {
			document.getElementById("myResult").innerHTML = xmlHttp.responseText;
  		} else {
			document.getElementById('myResult').innerHTML = 'Stiamo controllando il CAP...';
		}
	}



	xmlHttp.open("GET","/Site/CapCheck.php?CAP=" + document.myForm.CAP.value, true);
	xmlHttp.send(null); 


}