The syrup we refer to here is Golden Syrup, easily available in Australia.
Measuring four tablespoons is a real bother. The syrup sticks to the spoon, and you have to dip it back into the jar with most of the syrup still clinging. Oh, don't get me started! A bit over quarter of a cup will be about the same measurement. You can warm the jar of syrup in the microwave to make it pour more readily, but don't overdo it - just a few seconds.
Did you know a Tablespoon is different in different countries? The Aussie tablespoon is 20ml. Here's a link to the Wikipedia entry on tablespoons for your information.