function validate_guestbook()
{

	var root = document.web_guestbook;
	var name = root.namee;
	var email = root.email;
	var comment = root.comment;
	var vcode=root.vcode;

	if(name.value == ''){
		alert("Please insert your name");
		root.namee.focus();
		return false;
	}

	var pattern = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,4})+$/;
	var flag=email.value.match(pattern);
	if(!flag){
		alert("please insert a valid email address");
		root.email.focus();
		return false;
	}
	if(comment.value == ''){
		alert("Please insert a comment");
		root.comment.focus();
		return false;
	}
//	showVCodeAndBackgroundBlackDivExpress();
	return true;
}

function validateVisualContact(){
	var root = document.contactus;
	var vcode = root.vcode;
	if(vcode.value == ''){
		alert("Please insert the visual code");
		root.vcode.focus();
		return false;
	}
	document.contactus.submit();
}

function hideMessageAlert(){
	document.getElementById('messageNew').style.visibility='hidden';
}
////////////////////////////////////////////////////