function dynamicText( itemID, message )
{
	var textField = document.getElementById(itemID);
	var newNode;
	
	if (!textField) {return; }

	newNode = document.createTextNode(
		(message =="") ? "\xa0" : message
	);
	textField.replaceChild(newNode, textField.firstChild);
}


function clearChildren( node )
{
	while (node.hasChildNodes())
	{
		node.removeChild( node.lastChild );
	}
}

function makeImage( src, width, height, alt )
{
	var node = document.createElement("img");
	
	node.setAttribute("src", src);
	if (width) { node.setAttribute("width", width); }
	if (height) { node.setAttribute("height", height); }
	node.setAttribute("alt", alt);
	return node;
}