figured out a workaround. the cart is the same no matter where the button is.
my frame with the add to cart button is a narrow collum. so i resized the cart in that frame
<script language="javascript" type="text/javascript">
<!--
function EJEJC_lc(th) { return false; }
function EJEJC_config() {
EJEJC_WIDTH=80;EJEJC_HEIGHT=400;
}
// -->
</script>
<script type="text/javascript" src="https://www.e-junkie.com/ecom/box.js"></script>