function validateandsubmitform() {
	if (document.contactus.nameform.value.length < 1) {
		alert("Please enter your name.");
		document.contactus.nameform.focus();
		return false;
	}
	if (document.contactus.telephonenoform.value.length < 1) {
		alert("Please enter your phone number.");
		document.contactus.telephonenoform.focus();
		return false;
	}
	var strEmail = document.contactus.emailaddressform.value;
	var isEmail = ((strEmail.indexOf("@") != -1) && (strEmail.indexOf(".") != -1));
	if (document.contactus.emailaddressform.value.length < 1) {
		alert("Please enter your email address.");
		document.contactus.emailaddressform.focus();
		return false;
	}
	if (!isEmail) {
		alert("Please enter a valid email address.");
		document.contactus.emailaddressform.focus();
		return false;
	}
	document.contactus.submit();
}