
<!--
//This detects if browser is Netscape 3+ or IE 4+.
bName=navigator.appName;
bVer=parseInt (navigator.appVersion);
if ((bName=="Netscape" && bVer >=3) ||
		(bName=="Microsoft Internet Explorer" && bVer>=4)) br="n3";
else br="n2";

//This creates image objects, and preloads all active and inactive images.
if (br=="n3"){
	img1on=new Image();
	img1on.src="images/nav_welcomeon.gif";
  	img2on=new Image();
	img2on.src="images/nav_missionon.gif";
	img3on=new Image();
	img3on.src="images/nav_archiveson.gif"; 
	img4on=new Image();
	img4on.src="images/nav_creditson.gif"; 
	img5on=new Image();
	img5on.src="images/nav_giveon.gif";


	img1off=new Image();
	img1off.src="images/nav_welcomeoff.gif";
  	img2off=new Image();
	img2off.src="images/nav_missionoff.gif";
	img3off=new Image();
	img3off.src="images/nav_archivesoff.gif";
	img4off=new Image();
	img4off.src="images/nav_creditsoff.gif";
	img5off=new Image();
	img5off.src="images/nav_giveoff.gif";



	
}

//This function activates the images.
function imgAct(imgName) {
	if (br=="n3") {
			document[imgName].src=eval(imgName+"on.src");
			
	}
}
//This function deactivates the images.
function imgInact(imgName) {
	if (br=="n3") {
			document[imgName].src=eval(imgName+"off.src");
		
	}
}
//-->