function formvalidation() {
	var apos = document.emailform.visitormail.value.indexOf("@");
	var dotpos = document.emailform.visitormail.value.lastIndexOf(".");
	var valid = true;
		
	if (document.emailform.visitor.value == "")
	{
		var nameMessage = "Please enter your name";
        document.getElementById('nameMsg').innerHTML = nameMessage;
		valid = false;
	}
	else
	{
		var nameMessage = "";
        document.getElementById('nameMsg').innerHTML = nameMessage;
	}
	
	if (document.emailform.notes.value == "") 
	{
		var notesMessage = "Please make sure you have provided your enquiry";
		document.getElementById('notesMsg').innerHTML = notesMessage;
		valid = false;
	}
	else
	{
		var notesMessage = "";
		document.getElementById('notesMsg').innerHTML = notesMessage;
	}

	if ((document.emailform.visitormail.value == "") || (apos <1) || (dotpos-apos <2))
	{
		var emailMessage = "Please make sure you have provided a valid email address";
		document.getElementById('emailMsg').innerHTML = emailMessage;
		valid = false;
	}
	else
	{
		var emailMessage = "";
		document.getElementById('emailMsg').innerHTML = emailMessage;
	}
	
	if (valid == false)
	{
		return valid;
	}	
}