function conferma(messaggio, url){
	if(confirm(messaggio))
		window.location.href = url;
}

function chk_txt(o,v){
	if(o.value.search('[a-zA-Z0-9]') == -1){
		if(arguments.length==1) alert('Campo ' + o.name + ' errato');
		else if(arguments.length==2) alert(v);
		o.focus();
		return false;
	}
	return true;
}

function chk_int(o,m){
	if(!o.value || o.value.search('[^0-9]') != -1){
		if(arguments.length==1) alert('Campo ' + o.name + ' errato');
		else if(arguments.length==2) alert(m);	
		o.focus();
		return false;
	}
	return true;
}
//togliere http!!!
function chk_url(o){
	if(o.value.search('[a-z]+://[a-zA-Z0-9]+\.[a-zA-Z0-9]+') == -1){
		alert('Campo ' + o.name + ' errato');
		o.focus();
		return false;
	}
	return true;
}
function chk_url1(o,m){
	if(o.value.search('[a-zA-Z0-9]+\.[a-zA-Z0-9]+') == -1){
		if(arguments.length==2){
			alert(m);
			o.focus();
		}
		return false;
	}
	return true;
}

function azzera(url){
	window.location.href = url;
}
function chk_email(o,d){
	if(o.value.search("^[0-9a-zA-Z]([-_.]?[0-9a-zA-Z])*@[0-9a-zA-Z]([-.]?[0-9a-zA-Z])*\\.[a-zA-Z]{2,4}$") == -1){
		alert(d);
		o.focus();
		return false;
	}
	return true;
}
function chk_select(o,d){
	if(!o[o.selectedIndex].value || !o.selectedIndex){
		alert(d);
		o.focus();
		return false;
	}
	return true;
}