var flashElements = new Array();

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

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

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