function isValidEmailAddress(emailAddress)
{ 
	var pattern = new RegExp(/^(("[\w-\s]+")|([\w-]+(?:\.[\w-]+)*)|("[\w-\s]+")([\w-]+(?:\.[\w-]+)*))(@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$)|(@\[?((25[0-5]\.|2[0-4][0-9]\.|1[0-9]{2}\.|[0-9]{1,2}\.))((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\.){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})\]?$)/i); 
	return pattern.test(emailAddress); 
}

$(document).ready(function(){
	$("input#feedback_email").keyup(function(){
		$("input#feedback_email").attr("value",$("input#feedback_email").val())
		var email = $("input#feedback_email").val();
		if(email != 0){ 
			if(isValidEmailAddress(email)){ 
				$("#check_feedback_email").html("<img src='./img/ico/drop-yes.gif' alt='Immissione valida' />");
			}
			else{ 
				$("#check_feedback_email").html("<img src='./img/ico/drop-no.gif' alt='Immissione non valida' />"); 
			} 
		}
		else{ 
			$("#check_feedback_email").html(""); 
		}
	});

	$("textarea#feedback_txt").keyup(function(){
		$("textarea#feedback_txt").attr("value",$("textarea#feedback_txt").val())
		var feedback_txt = $("textarea#feedback_txt").val();
		if(feedback_txt != 0){ 
			if(feedback_txt.length >10  ){
					//alert(feedback_txt)
				$("#check_feedback_txt").html("<img src='./img/ico/drop-yes.gif' alt='Immissione valida' />");
			}
			else{ 
				$("#check_feedback_txt").html("<img src='./img/ico/drop-no.gif' alt='Immissione non valida' />"); 
			} 
		}
		else{ 
			$("#check_feedback_txt").html(""); 
		}
	}); 
});