getElementByPartialName.js

// Unnecessary when JQuery is available. Returns the first element
// of [elementType] in the DOM tree whose ID contains [name].
function _getElementByPartialName(name, elementType) {
	var elements = document.getElementsByTagName(elementType);
	for (var i = 0; i < elements.length; i++) {
		if (elements[i].getAttribute("id").indexOf(name) > -1) {
			return elements[i];
		}
	}
	return null;
}