function populateDropDownList(dropDownField, hiddenField, delim) {
	var choiceList;
	var choices;
	dropDownList.clearItems();
	choiceList = hiddenField.rawValue;
	choices = choiceList.split(delim);
	var numchoices = choices.length;

	for (var i = 0; i < numchoices; i=i+1) {
		dropDownList.addItem(choices[i]);
	}
}
// populateDropDownListWithValue will have similar content, except for this:
function populateDropDownListWithValue(dropDownList, hiddenField, delim) {
	...
	for (var i = 0; i < numChoices; i=i+2) {
		dropDownList.addItem(choices[i], choices[i+1]);
	}
}