//server location
	 //allows location in function call to be root relative
	var site_root = document.location.href.substr(0,document.location.href.indexOf('tfl/'));
	site_root += 'tfl/';
	
	//=======================================================
	
	// use this for rollover images on homepage
	
		img1on = new Image();           // Rollover images
		img1on.src = site_root + "images/nav_intro_ovr.gif";  
		img2on = new Image(); 
		img2on.src = site_root + "images/nav_profile_ovr.gif";  
		img3on = new Image(); 
		img3on.src = site_root + "images/nav_analyze_ovr.gif";  
		img4on = new Image(); 
		img4on.src = site_root + "images/nav_connect_ovr.gif";  
		img5on = new Image(); 
		img5on.src = site_root + "images/nav_resources_ovr.gif";  
		img6on = new Image(); 
		img6on.src = site_root + "images/hm_nav_about_ovr.gif";  
		img7on = new Image(); 
		img7on.src = site_root + "images/hm_nav_resources_ovr.gif";  
		img8on = new Image(); 
		img8on.src = site_root + "images/hm_nav_sitemap_ovr.gif";  
		img9on = new Image(); 
		img9on.src = site_root + "images/nav_standards_ovr.gif";  
		
		img1_1on = new Image();           // Rollover images
		img1_1on.src = site_root + "images/nav_about1_ovr.gif";  
		img2_1on = new Image(); 
		img2_1on.src = site_root + "images/nav_about2_ovr.gif";  
		img3_1on = new Image(); 
		img3_1on.src = site_root + "images/nav_about3_ovr.gif";  
		img4_1on = new Image(); 
		img4_1on.src = site_root + "images/nav_about4_ovr.gif";  
		img5_1on = new Image(); 
		img5_1on.src = site_root + "images/nav_about5_ovr.gif";  
		
		img1_2on = new Image();           // Rollover images
		img1_2on.src = site_root + "images/nav_standards1_ovr.gif";  
		img2_2on = new Image(); 
		img2_2on.src = site_root + "images/nav_standards2_ovr.gif";  
		img3_2on = new Image(); 
		img3_2on.src = site_root + "images/nav_standards3_ovr.gif";  
		
		img1_3on = new Image();           // Rollover images
		img1_3on.src = site_root + "images/nav_assess1_ovr.gif";  
		img2_3on = new Image(); 
		img2_3on.src = site_root + "images/nav_assess2_ovr.gif";  
		img3_3on = new Image(); 
		img3_3on.src = site_root + "images/nav_assess3_ovr.gif";  
		img4_3on = new Image(); 
		img4_3on.src = site_root + "images/nav_assess4_ovr.gif";  
		img5_3on = new Image(); 
		img5_3on.src = site_root + "images/nav_assess5_ovr.gif";  
		
		
	
		img1off = new Image();           // Rolloff images
		img1off.src = site_root + "images/nav_intro_off.gif";  
		img2off = new Image(); 
		img2off.src = site_root + "images/nav_profile_off.gif";  
		img3off = new Image(); 
		img3off.src = site_root + "images/nav_analyze_off.gif";  
		img4off = new Image(); 
		img4off.src = site_root + "images/nav_connect_off.gif";  
		img5off = new Image(); 
		img5off.src = site_root + "images/nav_resources_off.gif";  
		img6off = new Image(); 
		img6off.src = site_root + "images/hm_nav_about.gif";  
		img7off = new Image(); 
		img7off.src = site_root + "images/hm_nav_resources.gif";  
		img8off = new Image(); 
		img8off.src = site_root + "images/hm_nav_sitemap.gif";  
		img9off = new Image(); 
		img9off.src = site_root + "images/nav_standards_off.gif";  
		
		
		img1_1off = new Image();           // Rollover images
		img1_1off.src = site_root + "images/nav_about1_off.gif";  
		img2_1off = new Image(); 
		img2_1off.src = site_root + "images/nav_about2_off.gif";  
		img3_1off = new Image(); 
		img3_1off.src = site_root + "images/nav_about3_off.gif";  
		img4_1off = new Image(); 
		img4_1off.src = site_root + "images/nav_about4_off.gif";  
		img5_1off = new Image(); 
		img5_1off.src = site_root + "images/nav_about5_off.gif";  
		
		img1_2off = new Image();           // Rollover images
		img1_2off.src = site_root + "images/nav_standards1_off.gif";  
		img2_2off = new Image(); 
		img2_2off.src = site_root + "images/nav_standards2_off.gif";  
		img3_2off = new Image(); 
		img3_2off.src = site_root + "images/nav_standards3_off.gif";  
	
		img1_3off = new Image();           // Rollover images
		img1_3off.src = site_root + "images/nav_assess1_off.gif";  
		img2_3off = new Image(); 
		img2_3off.src = site_root + "images/nav_assess2_off.gif";  
		img3_3off = new Image(); 
		img3_3off.src = site_root + "images/nav_assess3_off.gif";  
		img4_3off = new Image(); 
		img4_3off.src = site_root + "images/nav_assess4_off.gif";  
		img5_3off = new Image(); 
		img5_3off.src = site_root + "images/nav_assess5_off.gif";  
		
		
			
		function imgOn(imgName) {
		        if (document.images) {
		            document[imgName].src = eval(imgName + "on.src");
		        }
		}

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


////////////////////////////////////////////////////////
function show(id) {

		 var id = id;	
	
		 if (document.getElementById && document.getElementById(id) != null ) {
		 		 
				document.getElementById(id).style.display = 'block';			
		 }	 
	
	 	
} // end  show() 

////////////////////////////////////////////////////////

function hide(id) {

		 var id = id;	
	
		 if (document.getElementById && document.getElementById(id) != null ) {
		 		 
				document.getElementById(id).style.display = 'none';			
		 }	 
	
	 	
} // end  hide() 


////////////////////////////////////////////////////////
// Use with drop-down menu

function goTo(url) {
 	if (!url || url == ' ') {
 		return;
 	}
 	location.href = url;
 }