function getElemRefs(id) 
{
	var el = (document.getElementById)? document.getElementById(id): (document.all)? document.all[id]: (document.layers)? document.layers[id]: null;
	if (el) el.css = (el.style)? el.style: el;
	return el;
}

function displayLayer(id) 
{
	var lyr = getElemRefs(id);
	if (lyr && lyr.css) lyr.css.display = "block";
}

function dontDisplayLayer(id) 
{
	var lyr = getElemRefs(id);
	if (lyr && lyr.css) lyr.css.display = "none";
}

function toggleDisplayLayer(id) 
{
	var lyr = getElemRefs(id);
	if (lyr.css.display == "none") 
	{
		displayLayer(id);
	}
	else 
	{
		dontDisplayLayer(id);
	}
}

function showDiv(id) 
{
	var lyr = getElemRefs(id);
	if (lyr && lyr.css) 
		lyr.css.display = "block";
}

function hideDiv(id) 
{
	var lyr = getElemRefs(id);
	if (lyr && lyr.css) 
		lyr.css.display = "none";
}