function _validate_fields()
{
	var warranty_fields = document.warranty_form;

	if(warranty_fields.first_name.value.length == 0)
	{
		alert("Please provide your first name.");
		return false;
	}
	if(warranty_fields.last_name.value.length == 0)
	{
		alert("Please provide your last name.");
		return false;
	}
	if(warranty_fields.phone.value.length == 0)
	{
		alert("Please provide your phone number.");
		return false;
	}
	if(warranty_fields.primary_email.value.length == 0)
	{
		alert("Please provide your email address.");
		return false;
	}
	if(warranty_fields.city.value.length == 0)
	{
		alert("Please provide your city.");
		return false;
	}
	if(warranty_fields.state.value.length == 0)
	{
		alert("Please provide your state.");
		return false;
	}
	if(warranty_fields.zip.value.length == 0)
	{
		alert("Please provide your zip code.");
		return false;
	}
	if(warranty_fields.product_purchased.value.length == 0)
	{
		alert("Please provide the product you purchased.");
		return false;
	}
	if(warranty_fields.part_number.value.length == 0)
	{
		alert("Please provide the part number.");
		return false;
	}
	if(warranty_fields.purchase_date.value.length == 0)
	{
		alert("Please provide the purchase date.");
		return false;
	}
	return true;
}