Hmmm, I now see the id is to match the column id, hmmm, I expect there's probably a nicer way to do it still, maybe
```javascript
columns = {
	classPick: 2,
	racePick: 1,
	...
};

function filterSelect(selectId) {
	var select = document.getElementById(selectId);
	var col = columns[selectId];
	if (select.selectedIndex == -1)
		window.filter[col] = "All";
	else
		window.filter[col] = select.options[select.selectedIndex].value;
	applyFilter();
}
```