// css selector
var lnk = '<LINK REL="STYLESHEET" TYPE="text/css" HREF="/wgbh/nova/shackleton/css/';
lnk += (navigator.appName.indexOf('Netscape') > -1) ? 'site_nn.css' : 'site_ie.css';
lnk += '">';
document.writeln(lnk);


// rollover code for shackleton navigation
// 

if(document.images) {
	
	var home1 = new Image();
	var home2 = new Image();
	var home3 = new Image();
	
	var shac1 = new Image();
	var shac2 = new Image();
	var shac3 = new Image();
	
	var surv1 = new Image();
	var surv2 = new Image();	
	var surv3 = new Image();

	var expl1 = new Image();
	var expl2 = new Image();
	var expl3 = new Image();
	
	var clas1 = new Image();
	var clas2 = new Image();
	var clas3 = new Image();

	var site1 = new Image();
	var site2 = new Image();
	var site3 = new Image();
		
	home1.src = "/wgbh/nova/shackleton/images/shackleton02_nav_home_off.gif";
	home2.src = "/wgbh/nova/shackleton/images/shackleton02_nav_home_roll.gif";
	// home3.src = "/wgbh/nova/shackleton/images/shackleton02_nav_home_down.gif";
	
	shac1.src = "/wgbh/nova/shackleton/images/shackleton02_nav_shac_off.gif";
	shac2.src = "/wgbh/nova/shackleton/images/shackleton02_nav_shac_roll.gif";
	shac3.src = "/wgbh/nova/shackleton/images/shackleton02_nav_shac_down.gif";
	
	surv1.src = "/wgbh/nova/shackleton/images/shackleton02_nav_surv_off.gif";
	surv2.src = "/wgbh/nova/shackleton/images/shackleton02_nav_surv_roll.gif";
	surv3.src = "/wgbh/nova/shackleton/images/shackleton02_nav_surv_down.gif";
	
	expl1.src = "/wgbh/nova/shackleton/images/shackleton02_nav_expl_off.gif";
	expl2.src = "/wgbh/nova/shackleton/images/shackleton02_nav_expl_roll.gif";
	expl3.src = "/wgbh/nova/shackleton/images/shackleton02_nav_expl_down.gif";
	
	clas1.src = "/wgbh/nova/shackleton/images/shackleton02_nav_clas_off.gif";
	clas2.src = "/wgbh/nova/shackleton/images/shackleton02_nav_clas_roll.gif";
	clas3.src = "/wgbh/nova/shackleton/images/shackleton02_nav_clas_down.gif";
	
	site1.src = "/wgbh/nova/shackleton/images/shackleton02_nav_site_off.gif";
	site2.src = "/wgbh/nova/shackleton/images/shackleton02_nav_site_roll.gif";
	clas3.src = "/wgbh/nova/shackleton/images/shackleton02_nav_clas_down.gif";
	
}

function off(imgName) {
	if(document.images)
	document[imgName].src = eval(imgName + '1.src');
}

function off_down(imgName) {
	if(document.images)
	document[imgName].src = eval(imgName + '3.src');
}

function on(imgName) {
	if(document.images)
	document[imgName].src = eval(imgName + '2.src');
}