Ordering Numbers?

i need to oredr a set of numbers. the numbers are "06/9","95/1","95/6","06/3" and so on. the thing is that these need to be ordered form the second number, so it shoudl be ordered thus: "95/1","06/3","95/6","06/9". how can i do this? at the moment just as an attempt im splitting the number either side of the "/" like this:

var regNo = "12/09"
var yearStart = 0
var yearEnd = regNo.indexOf("/")
var year = regNo.substring(yearStart, yearEnd)
var itemStart = regNo.indexOf("/") + 1
var itemEnd = regNo.length
var itemNo = regNo.substring(itemStart, itemEnd)

but where do i go form here?