creating block/condition for shopping cart

[OutdoorMonkey]

I'd like to try to create a condition for our sidebar shopping cart summary so that it only appears in the sidebar once you have added something to the cart - can anyone tell me how this works?

We have our side bar code in the overall layout :

 <div id="right">
   <actinic:variable name="ShoppingCartSummary" value="Shopping Cart Summary In Box" />
   <actinic:variable name="CustomSidebarBox" value="Special offers (+)" />   
   <div><actinic:variable name="CustomSidebarBox" value="Freeshipping (+)" /></div><br/>
   <actinic:variable name="CustomSidebarBox" value="TrailZilla Affilliate" />

Also, if at all possible it would be great to make the FreeShipping variable also conditional so that disappears when someone puts something in the cart - so the side bar doesn't get too crowded, but i'm not massively worried about this.

All help and suggestions gratefully received!

[TraceyHand]

You can't use a blockif (if that's what you mean) on the website.
These only work offline (to show Actinic what to include/not include when creating pages/uploading)

[NormanRouxel]

You'll have to use JavaScript. You can use getCartItem(3) to return the number of items in the shopping cart. If non zero, enable the display of the summary.

E.g (untested):

<span id="summary" style="display:none">
SUMMARY CODE HERE
</span>
<script>
if (getCartItem(3) > 0) document.getElementById('summary').style.display='';
</script>