ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false
 
afsppOverview_off		= new Image();
afsppOverview_off.src	= "../images/rollovers/sub/afsppOverview_off.gif";
afsppOverview_on		= new Image();
afsppOverview_on.src	= "../images/rollovers/sub/afsppOverview_on.gif";

gettingStarted_off		= new Image();
gettingStarted_off.src	= "../images/rollovers/sub/gettingStarted_off.gif";
gettingStarted_on		= new Image();
gettingStarted_on.src	= "../images/rollovers/sub/gettingStarted_on.gif";

policy_guidance_off		= new Image();
policy_guidance_off.src	= "../images/rollovers/sub/policy_guidance_off.gif";
policy_guidance_on		= new Image();
policy_guidance_on.src	= "../images/rollovers/sub/policy_guidance_on.gif";

press_off				= new Image();
press_off.src			= "../images/rollovers/sub/press_off.gif";
press_on				= new Image();
press_on.src			= "../images/rollovers/sub/press_on.gif";

products_off			= new Image();
products_off.src		= "../images/rollovers/sub/products_off.gif";
products_on				= new Image();
products_on.src			= "../images/rollovers/sub/products_on.gif";

resources_off			= new Image();
resources_off.src		= "../images/rollovers/sub/resources_off.gif";
resources_on			= new Image();
resources_on.src		= "../images/rollovers/sub/resources_on.gif";

var currentImg = "";
ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false

function img_act(imgName) 
{
        imgOn = eval(imgName + "_on.src");
        document [imgName].src = imgOn;
}

function img_inact(imgName) 
{
	if(currentImg != imgName)
	{
        imgOff = eval(imgName + "_off.src");
        document [imgName].src = imgOff;
    }
}

function img_sel(imgName)
{
	temp = currentImg;
	currentImg = imgName;
	
	if(temp != "")
		img_inact(temp);
}