function chkcontactform(){
	if(document.contactform.firstname.value==''){
		alert("Please enter your first name");
		return false;
	}
	if(document.contactform.lastname.value==''){
		alert("Please enter your last name");
		return false;
	}
	if(document.contactform.address1.value=='')	{
		alert("Please enter your address");
		return false;
	}
	if(document.contactform.city.value==''){
		alert("Please enter your city");
		return false;
	}
	if(document.contactform.postcode.value==''){
		alert("Please enter your postcode");
		return false;
	}
	if(document.contactform.emailaddress.value==''){
		alert("Please enter your email address");
		return false;
	}
	if(!emailCheck(document.contactform.emailaddress.value)){alert("Please enter a valid email address");return false;};
	return true;
}