How to avoid changing the email address when chcking out?

[Jopyance]

I have a question for help.
On the billing screen, customer's email address will be automatically filled in the email address. But some of them like to change the email, it is not permitted for us, how should we do? Thanks

[Jim]

Why is it not permitted? ShopSite doesn't do anything to prevent the email address on the billing screen from being changed.

What is a link to the page where the email address can't be changed?

[Jopyance]

as we have another system to link with Shopsite. If the email address is modified, we lose the connection between the two system. Could you give us some suggestions?

[Jim]

I'm not a css expert but you might be able to put some css in to make the field non-editable.
here is the form information with the classes
<tr><td class="addr">Email<font color=blue>*</font></td><td class="addr_val"><input class="addr" type=text name="transaction[customer][email]" value="jim@shopsite.com" size="28"></td></tr>

The class on a number of fields is "addr" but I think you can use that with the name "transaction[customer][email]" and get a style that will affect just that field.

[Jopyance]

Thx. But when I add script at the part of "Javascript added at start of built-in CheckIt function:" in page of Checkout Screen, some debug sentences are displayed on the top of webpage. like "if (button == "68") return (true); ...". the Email address still can be edited. Could you tell me what's the problem? Thanks a lot.

Here is my JS:

<script language="javascript">
function disableField()
{
if (document.getElementsByName("transaction[customer][email]")[0]){
document.getElementsByName("transaction[customer][email]")[0].readOnly = true;
}

}
</script>

[Jopyance]

I found my mistake. Now it is ok. here is the script.

<script language="javascript">
if (document.billing.Email.value != "")
{
document.billing.Email.readOnly = true;
}

</script>

Thank you, Jim.