heres a simple mod that removes the discount field from the checkout if there is no discount being given.
all you have to do is open up cart_totals.tpl and replace
Code:
<TR>
<TD nowrap><font class=FormButton>{$lng.lbl_discount}:</font></TD>
<TD>[img]{$ImagesDir}/null.gif[/img]
</TD>
<TD nowrap align=right><font class=ProductPriceSmall>{include file="currency.tpl" value=$cart.discount}</font></TD>
<TD nowrap align=right>{include file="customer/main/alter_currency_value.tpl" alter_currency_value=$cart.discount}</TD>
</TR>
with
Code:
{if $cart.discount ne 0 }
<TR>
<TD nowrap><font class=FormButton>{$lng.lbl_discount}:</font></TD>
<TD>[img]{$ImagesDir}/null.gif[/img]
</TD>
<TD nowrap align=right><font class=ProductPriceSmall>{include file="currency.tpl" value=$cart.discount}</font></TD>
<TD nowrap align=right>{include file="customer/main/alter_currency_value.tpl" alter_currency_value=$cart.discount}</TD>
</TR>
{/if}
this was done in 3.5.x but would work pretty much the same in other versions.
this is the only code added
Code:
{if $cart.discount ne 0 }
Old code here
{/if}