browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || ((navigator.appName ==  "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )))
var CurrWin;
if (browser){
  // off images
  portfolionews_0 = new Image(118,20);
  portfolionews_0.src="images/news/portfolionews_0.jpg";
  obpnews_0 = new Image(70,20);
  obpnews_0.src="images/news/obpnews_0.jpg";
  calendarnews_0 = new Image(151,20);
  calendarnews_0.src="images/news/calendarnews_0.jpg";
  
  // on images
  
  portfolionews_1 = new Image(118,20);
  portfolionews_1.src="images/news/portfolionews_1.jpg";
  obpnews_1 = new Image(70,20);
  obpnews_1.src="images/news/obpnews_1.jpg";
  calendarnews_1 = new Image(151,20);
  calendarnews_1.src="images/news/calendarnews_1.jpg";  

  CurrWin = 'portfoliostories';
  CurrSubMenu = 'portfolionews';

}


function show_news(newsType) 
{
//  if(navigator.appName.indexOf("Netscape")>-1) 
//  {
	var OldImage;

	var LayerObj;

	// if the click is not on the news item currently displayed
	if(newsType!=CurrWin)
	{
		// unhighlight previous news item (need to temperarily reset submenu, for imgchg to react)
		OldImage=CurrSubMenu;
		
		LayerObj = GetXBrowserObjectStyle(CurrWin);

		LayerObj.visibility="hidden";
		// document.all(CurrWin).style.visibility="hidden";		// hide current window
		CurrSubMenu='temp';
		imgchg('0',OldImage);

		// show new window
		LayerObj = GetXBrowserObjectStyle(newsType);
		LayerObj.visibility="visible";

		CurrWin=newsType;
		// change the highlighted submenu
		if(CurrWin=='portfoliostories')
		{
			CurrSubMenu = 'portfolionews';
		}
		else if(CurrWin=='obpstories')
		{
			CurrSubMenu = 'obpnews';
		}
		else
		{
			CurrSubMenu = 'calendarnews';
		}

		imgchg('1', CurrSubMenu);
	}

}



function GetXBrowserObjectStyle(objId)
{
	if(document.getElementById)
	{
		return document.getElementById(objId).style;
	}
	else if(document.layers)
	{
		return document.layers[objId];
	}
	else if(document.all)
	{
		return document.all(objId).style;
	}
}

/*
function getStyleObject(objectId) {
    // cross-browser function to get an object's style object given its id
    if(document.getElementById && document.getElementById(objectId)) {
	// W3C DOM
	return document.getElementById(objectId).style;
    } else if (document.all && document.all(objectId)) {
	// MSIE 4 DOM
	return document.all(objectId).style;
    } else if (document.layers && document.layers[objectId]) {
	// NN 4 DOM.. note: this won't find nested layers
	return document.layers[objectId];
    } else {
	return false;
    }
} // getStyleObject
*/