function oWindow(pageName,pageFeatures) {
	nWindow = window.open(pageName,"tipsWindow",pageFeatures);				
}

if(document.images)
{	
red = new Image();   red.src = "gfx/00_icon_arrow_r.gif";
blank = new Image(); blank.src ="gfx/white_arrow.gif";
selectedg = new Image(); selectedg.src ="gfx/00_icon_largearrow_g.gif";
}

function swap(imgName)
{

	if(document.images)
		{
			document[imgName].src = red.src;		
		}
		
}

function swapOff(imgName)
{
	if(document.images)
		{
			document[imgName].src = blank.src;
		}
}

function swapOffSelected(imgName)
{
	if(document.images)
		{
			document[imgName].src = selectedg.src;
		}
}
	//document["othersites"].visibility = "hide";
	//document["othersites"].style.visibility = "hidden";
function showLayer(sLayerName) {

    var oLayer = null;
    if (document.all) {
        // IE
        oLayer = document[sLayerName].style;
    } else if (document.layers) {
        // NS4
        oLayer = document.layers[sLayerName];
    } else if (document.getElementById) {
        // NS6
        oLayer = document.getElementById(sLayerName).style;
    }

    oLayer.visibility = (oLayer.visibility == 'visible' ? 'hidden' : 'visible');

    /*
    same as
    if (oLayer.visibility == 'visible')
        oLayer.visibility = 'hidden'
    else
        oLayer.visiblity = 'visible';
    */
}