var flashElements = new Array();

function registerFlash(elementName) {
	flashElements[flashElements.length] = elementName;
}

function hideFlash() {
	for (key in flashElements){
		var flashElement = document.getElementById(flashElements[key]);
		var flashElementImage = document.getElementById(flashElements[key]+"_image");
		if (flashElement && flashElementImage) {
			flashElement.style.display = "none";
			flashElementImage.style.display = "block";
		}
	}
}

function showFlash() {
	for (key in flashElements){
		var flashElement = document.getElementById(flashElements[key]);
		var flashElementImage = document.getElementById(flashElements[key]+"_image");
		if (flashElement && flashElementImage) {
			flashElement.style.display = "block";
			flashElementImage.style.display = "none";
		}
	}
}