function vali_mail(str) 
{
  // are regular expressions supported?
 
  var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
  var r2 = new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
if(!(!r1.test(str.value) && r2.test(str.value)))
{
alert("Il formato della E-mail non è corretto");
str.focus();
return false
}
return true
}
function validaTesto() {
	
	var args=validaTesto.arguments;
	obj=args[0];
	args[1]?Label=args[1]:Label=obj.name;
	if (obj.value=="")
	{
		alert('Il campo ' + Label + ' è obbligatorio');
		obj.focus() ;
		obj.select();
		return false;
	}
	return true
}
function setCookie(name,value)
{
	var d=new Date()
	d.setMonth(d.getYear() + 5);
	msg=name+"="+value+"++; expires=" + d.toGMTString() + "; path=/sanmartino/;";
	document.cookie=msg;
}
function apri (){
	var args=apri.arguments;
	URL=args[0];
	args[1]?w=args[1]:w=600;
	args[2]?h=args[2]:h=400;
	args[3]?l=args[3]:l=100;
	args[4]?t=args[4]:t=100;
	args[5]?s=args[5]:s='yes';
	var features ="menubar=no,toolbar=no,width="+w+",height="+h+",status=no,scrollbars="+s+",top="+t+",left="+l+",resizable=no";
	window.open(URL,"",features);
}
function swap(img,img1){
if((parent.frames['Top'].document.topImg.complete) && (parent.frames['Left'].document.sx.complete)){
		parent.frames['Top'].document.topImg.src=img;
		parent.frames['Left'].document.sx.src=img1;
		window.clearInterval(temp);
	}
}