function OpenPopUp(url,name,width,height)
{
	if(!name) name="_blank";
	width=(width*1)+50;
	height=(height*1)+50;
	var left=(screen.width-width)/2;
	var top=(screen.height-height)/2;
	var w=window.open(url,name,"toolbar=0,location=0,directories=0,menuBar=0,scrollbars=1,resizable=0,width="+width+",height="+height+",left="+left+",top="+top);
	return w;
}

function Check(form)
{
	var string="";
	if(!form.azienda.value || !form.telefono.value || !form.email.value || !form.commenti.value)
	{
		if(!form.azienda.value)		string+="\n- Azienda";
		if(!form.telefono.value)	string+="\n- Telefono";
		if(!form.email.value)		string+="\n- Email";
		if(!form.commenti.value)	string+="\n- Commenti";						
	}
	if(string)
	{
		alert("Non sono stati inseriti i seguenti campi obbligatori :"+string);
		return (false);
	}
	return (true);
}