function modmessageblock_set (message, class)
{
	var block = document.getElementById("modmessageblock");
	var block_message = document.getElementById("modmessageblock_message");
	
	if (!(block && block_message))
		return;
	
	if (message)
	{
		while (block_message.firstChild)
			block_message.removeChild(block_message.firstChild);
		
		modmessageblock_add (message);
		block.className = class;
		block.style.display = 'block';
	}
	else
		block.style.display = 'none';
}

function modmessageblock_add (message)
{
	var block_message = document.getElementById("modmessageblock_message");
	
	block_message.appendChild(document.createTextNode(message));
}