function formvalidation()
{
	for (i=0;i<3;i++) {
		box = document.contact.elements[i];
		if (!box.value) {
			alert('You haven\'t fill in ' + '\"' + box.name + '\"' + '!');
			box.focus()
			return false;
			}

	}
	
				document.contact.submit();
}