function fireImageOver(id) {
	if (document.getElementById(id))
		document.getElementById(id).className="ImageBorderSelected";
}

function fireImageOut(id) {
	if (document.getElementById(id))
		document.getElementById(id).className="ImageBorderNormal";
}

function toggleElement(id) {
	if (document.getElementById(id)) {
		var element = document.getElementById(id);

		if (element.style.display == 'none')
			element.style.display = 'block';
		else
			element.style.display = 'none';
	}
}

function disableBW(id) {
	if (document.getElementById(id))
		document.getElementById(id).filters.item(0).enabled = false;
}

function enableBW(id) {
	if (document.getElementById(id))
		document.getElementById(id).filters.item(0).enabled = true;
}