Untitled

<!DOCTYPE html>
<html>
<script>
function Validatename() {

}

</script>
<head>
<link rel="stylesheet" href="FizzyStyle.css">
</head>
<h1> Fizzy Drink Order </h1>

<div style="float:left;"> <!-- Form Text -->
First Name: </br></br>
Address: <br></br><br></br><br></br></br>
Phone Number: <br></br></br>
Email Address: <br></br>
Box Size: <br></br>
Number of Boxes: <br></br>
Total Price: <br></br></br>
Delivery Option: <br></br>
Price of Boxes: <br></br>
Price of Postage: <br></br>
Total Price: <br></br>
I agree to the terms<br> and conditions:
</div>
<div> <!-- Form Boxes -->
<form name="FizForm" onSubmit="Validate();" action="mailto:839193@swansea.ac.uk" method=post>
<input type="text" placeholder="First Name" name="FirstName" required>
<input type="text" placeholder="Second Name" name="SecondName" required></br></br>
<input type="text" placeholder="Address Line 1" name="Add1" required><br></br>
<input type="text" placeholder="Address Line 2" name="Add2"><br></br>
<input type="text" placeholder="Address Line 3" name="Add3"><br></br>
<input type="text" placeholder="Phone Number" name="Pnum"><br></br>
<input type="text" placeholder="Email Address" name="Email"><br></br>
<input name="radio" type="radio" checked>20 can box (&pound5)<input name="radio40" type="radio">40 can box (&pound10)<input name="radio60" type="radio">60 can box (&pound15)<br></br>
<input type="number" min="1" max="10" name="BoxNum" required><br></br>
<button type="button" onClick>Calculate Cost</button><input type="text" name="cost" readonly></br></br></br>
<select name="DelOpt" required>
<option name="E">Economy</option>
<option name="P">Premium</option>
<option name="ND">Next Day</option>
<option name="ND9">Next Day(9am)</option>
</select></br>
<input type="text" name="BoxPrice" readonly></br><br>
<input type="text" name="PostagePrice"readonly></br><br>
<input type="text" name="TotalPrice" readonly></br><br>
<input type="checkbox" name="TandC"><br></br>
<input type="submit">

</form>
</div>
<script>
function Validate() {
	if (document.FizForm.FirstName.value.length <= 1){
		alert("Please enter your full name");
		return false;
		}
}
</script>