if (document.images) {
	mission_on = new Image(); 
	mission_on.src = "nav/mission_on.gif";	// Active image
	management_on = new Image(); 
	management_on.src = "nav/management_on.gif";
	contact_on = new Image(); 
	contact_on.src = "nav/contact_on.gif"; 
	projects_on = new Image(); 
	projects_on.src = "nav/projects_on.gif";

	mission_off = new Image(); 
	mission_off.src = "nav/mission_off.gif";	// Inactive image
	management_off = new Image(); 
	management_off.src = "nav/management_off.gif";
	contact_off = new Image(); 
	contact_off.src = "nav/contact_off.gif"; 
	projects_off = new Image(); 
	projects_off.src = "nav/projects_off.gif";
}

// Function to 'activate' images.
function imgOn(imgName) {
        if (document.images) {
			document.images[imgName].src = eval(imgName + "_on.src");
        }		
}

// Function to 'deactivate' images.
function imgOff(imgName) {
        if (document.images) {
		    	document.images[imgName].src = eval(imgName + "_off.src");
        }
}

document.write (
'<table border="0" cellpadding="0" cellspacing="0" width="100%">'
   +	'<tr>'
   +	'<td><a href="index.html" onmouseover=imgOn(\'mission\') onmouseout=imgOff(\'mission\')>'
   +		'<img width="128" height="40" src="nav/mission_off.gif" border="0" vspace="0" name="mission" alt="mission">'
   +		'</a></td>'
   +	'<td><a href="management.html" onmouseover=imgOn(\'management\') onmouseout=imgOff(\'management\')>'
   +		'<img width="128" height="40" src="nav/management_off.gif" border="0" vspace="0" name="management" alt="management">'
   +		'</a></td>'
   +	'<td><a href="contact.html" onmouseover=imgOn(\'contact\') onmouseout=imgOff(\'contact\')>'
   +		'<img width="128" height="40" src="nav/contact_off.gif" border="0" vspace="0" name="contact" alt="contact">'
   +		'</a></td>'
   +	'<td><a href="projects.html" onmouseover=imgOn(\'projects\') onmouseout=imgOff(\'projects\')>'
   +		'<img width="128" height="40" src="nav/projects_off.gif" border="0" vspace="0" '
   +			'name="projects" alt="projects">'
   +		'</a></td>'
   +	'<td>'
   +		'<img width="288" height="40" src="nav/NavbarRight.gif" border="0" vspace="0" alt="">'
   +		'</td>'
   +	'</tr>'
   +	'</table>') ;