whichbrowser = navigator.appName;
Ver = parseInt ( navigator.appVersion );

if	(
		( whichbrowser == "Netscape" && Ver >= 3 ) ||
		( whichbrowser == "Microsoft Internet Explorer" && Ver >= 4 )
	)
		version = "3";
else	version = "2";

if ( version == "3" )
{
	no_of_modes = 5;
	imgArrPicture = new Array ( no_of_modes );
	imgArrRoll = new Array ( no_of_modes );
	
	catOff = new Image ();
	catOn = new Image ();
	
	for ( var i = 1; i <= no_of_modes; i++ )
	{
		imgArrPicture[i] = new Image ();
		imgArrRoll[i] = new Image ();
	}
	
	// Home
	imgArrPicture[1].src = "./images/ccnmenu/home.gif";
	imgArrRoll[1].src = "./images/ccnmenu/home2.gif";
	// Research
	imgArrPicture[2].src = "./images/ccnmenu/research.gif";
	imgArrRoll[2].src = "./images/ccnmenu/research2.gif";
	// Downloads
	imgArrPicture[3].src = "./images/ccnmenu/downloads.gif";
	imgArrRoll[3].src = "./images/ccnmenu/downloads2.gif";
	// Docs
	imgArrPicture[4].src = "./images/ccnmenu/docs.gif";
	imgArrRoll[4].src = "./images/ccnmenu/docs2.gif";
	// Contact
	imgArrPicture[5].src = "./images/ccnmenu/contact.gif";
	imgArrRoll[5].src = "./images/ccnmenu/contact2.gif";
}

function	ActiveButton	( modeName, modeNum )
{
	if ( version == "3" )
		document[modeName].src = imgArrRoll[modeNum].src;
}

function	IdleButton	( modeName, modeNum )
{
	if ( version == "3" )
		document[modeName].src = imgArrPicture[modeNum].src;
}