cookiedomain = ".avisautonoleggio.it";
function clearCookie()
{
	var expires = new Date();
	var expiryDate;
	var year = expires.getYear();
	
	expires.setYear(year-1);
	expiryDate = expires.toGMTString();
	document.cookie= 'expires=' + expiryDate;
}
function getCookieValue( xParam )
{
	xRet = "";
	if(document.cookie)
	{
		values = document.cookie.split( xParam + '=');
		if( values[1] )
		{
			tid = values[1].split(';');
			xRet = tid[0];
		}
	}
	return xRet;
}
function setCookieValue( xParam )
{
	var expires = new Date();
	var expiryDate;
	clearCookie();
	var year = expires.getYear();
	var month = expires.getMonth();
	if( month == 12 )
	{
		month=1;
		year++;
	}
	else
		month++;
	expires.setMonth(month);
	expires.setYear(year);
	expiryDate = expires.toGMTString();
		
	document.cookie=  xParam + ';expires='+ expiryDate + ';domain=' + cookiedomain + ';path=/';
}