<!-- BEGIN JAVASCRIPT ROLLOVER FUNCTIONS -->

if (document.images) {   
        im1on = new Image();
        im1on.src = "images/nav_services02.gif";
        im1off = new Image();
        im1off.src = "images/nav_services01.gif";
	im2on = new Image();
        im2on.src = "images/nav_outreach02.gif";
        im2off = new Image();
        im2off.src = "images/nav_outreach01.gif";
	im3on = new Image();
        im3on.src = "images/nav_about02.gif";
        im3off = new Image();
        im3off.src = "images/nav_about01.gif";
	im4on = new Image();
        im4on.src = "images/nav_staff02.gif";
        im4off = new Image();
        im4off.src = "images/nav_staff01.gif";
	im5on = new Image();
        im5on.src = "images/nav_gallery02.gif";
        im5off = new Image();
        im5off.src = "images/nav_gallery01.gif";
}			


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

function img_inact(imgName) {
   if (document.images) { 
        imgOff = eval(imgName + "off.src");
		 document [imgName].src = imgOff;
        }
}

<!-- END JAVASCRIPT ROLLOVER FUNCTIONS -->