home_off   			= new Image();        
home_off.src		= "/media/home_off.gif";

home_on				= new Image();        
home_on.src			= "/media/home_on.gif";

about_off   		= new Image();        
about_off.src		= "/media/about_off.gif";

about_on			= new Image();        
about_on.src		= "/media/about_on.gif";

procedures_off   		= new Image();        
procedures_off.src		= "/media/procedures_off.gif";

procedures_on			= new Image();        
procedures_on.src		= "/media/procedures_on.gif";

technology_off   		= new Image();        
technology_off.src		= "/media/technology_off.gif";

technology_on			= new Image();        
technology_on.src		= "/media/technology_on.gif";

facility_off   		= new Image();        
facility_off.src		= "/media/facility_off.gif";

facility_on			= new Image();        
facility_on.src		= "/media/facility_on.gif";

staff_off   		= new Image();        
staff_off.src		= "/media/staff_off.gif";

staff_on			= new Image();        
staff_on.src		= "/media/staff_on.gif";

news_off   			= new Image();       
news_off.src		= "/media/news_off.gif";

news_on				= new Image();        
news_on.src			= "/media/news_on.gif";

links_off   		= new Image();        
links_off.src		= "/media/links_off.gif";

links_on			= new Image();        
links_on.src		= "/media/links_on.gif";


// this function swaps the images	

function swapImage(oldNav,newNav)		

{        	document.images[oldNav].src=eval(newNav + ".src");		}   

function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
 }
}
window.onload = externalLinks;

function NewWindow(url, myname, w, h, scroll) 
{
var winl = (screen.width - w) / 2;
var wint = (screen.height - h) / 2;
winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable'
win = window.open(url, myname, winprops)
if (parseInt(navigator.appVersion) >= 4) 
{ 
win.window.focus(); 
	}
	}