Unique element ID, even if element doesn't have one

Question

I\'m writing a GreaseMonkey script where I\'m iterating through a bunch of elements. For each element, I need a string ID that I can use to reference that element later. The

Answer 1

In javascript, you could attach a custom ID field to the node

if(node.id) {
  node.myId = node.id;
} else {
  node.myId = createId();
}

// store myId

It's a bit of hack, but it'll give each and every node an id you can use. Of course, document.getElementById() won't pay attention to it.