function dropDownChild(arrowElementID, contentElementID, contents, dropDownElementID, inputID)
{
	var arrowElement = document.getElementById(arrowElementID);
	var dropDownElement = document.getElementById(dropDownElementID);
	var contentElement = document.getElementById(contentElementID);
	var inputElement = document.getElementById(inputID);
	var arrowImageLength = arrowElement.style.backgroundImage.length;
	var arrowImageType = arrowElement.style.backgroundImage.substr(arrowImageLength - 5, arrowImageLength);
	arrowElement.style.backgroundImage = arrowElement.style.backgroundImage.substr(0, arrowImageLength - 6) + arrowImageType;
	dropDownElement.style.display = 'none';
	contentElement.innerHTML = contents;
	inputElement.value = contents;
}
function dropDownParent(arrowElementID, dropDownElementID)
{
	var arrowElement = document.getElementById(arrowElementID);
	var dropDownElement = document.getElementById(dropDownElementID);
	var arrowImageLength = arrowElement.style.backgroundImage.length;
	var arrowImageType = arrowElement.style.backgroundImage.substr(arrowImageLength - 5, arrowImageLength);
	if (dropDownElement.style.display == 'block')
	{
		arrowElement.style.backgroundImage = arrowElement.style.backgroundImage.substr(0, arrowImageLength - 6) + arrowImageType;
		dropDownElement.style.display = 'none';
	}
	else
	{
		arrowElement.style.backgroundImage = arrowElement.style.backgroundImage.substr(0, arrowImageLength - 5) + 'D' + arrowImageType;
		dropDownElement.style.display = 'block';
	}
}