function validateContact(f)
{
	if (f.name.value == '')
	{
		window.alert('Please enter your name to continue.');
		f.name.focus();
		return false;
	}
	
		if (f.company.value == '')
	{
		window.alert('Please enter your company name to continue.');
		f.company.focus();
		return false;
	}
	
		if (f.phone.value == '')
	{
		window.alert('Please enter your phone number to continue.');
		f.phone.focus();
		return false;
	}
	
	if (f.email.value == '')
	{
		window.alert('Please enter your email address to continue.');
		f.email.focus();
		return false;
	}
	
		if (f.address.value == '')
	{
		window.alert('Please enter your address to continue.');
		f.address.focus();
		return false;
	}
	
	if (f.checkbox.checked == false)
	{
		window.alert('Please read our Terms and conditions of Sale.');
		f.checkbox.focus();
		return false;
	}
	
	return true;
}