function validate() { 
		if ( document.mailingListForm.Name.value.length < 1 || document.mailingListForm.Name.value == 'Your first name') {
			alert('Please enter your first name');
			document.mailingListForm.Name.focus();
			return false;
		} else if ( document.mailingListForm.Surname.value.length < 1 || document.mailingListForm.Surname.value == 'Your surname' ){
			alert('Please enter your surname');
			document.mailingListForm.Surname.focus();
			return false;
		} else if ( document.mailingListForm.DaytimeTelephoneNumber.value.length != 11){
			alert('Please enter a valid telephone number');
			document.mailingListForm.DaytimeTelephoneNumber.focus();
			return false;
		} else if ( document.mailingListForm._fromaddr.value.indexOf('@') == -1 ||document.mailingListForm._fromaddr.value.indexOf('.') == -1) {
			alert('Please enter a valid E-mail address');
			document.mailingListForm._fromaddr.focus();
			return false;
		} else {
			return true;
		}
	}