
	<!--
	
	if (document.images) {
		// Initialize Variables
		var defaultInactivePath  = "";
		var defaultActivePath    = "-over";
		var defaultExt           = ".gif";
		var rolloverImages       = new Object();
		var isCached             = false;
		
		// Precache images
		rolloverImages["nav_home"]		= new rolloverObject("nav_home", 	126, 18, defaultInactivePath, defaultActivePath, defaultExt);
		rolloverImages["nav_mission"]	= new rolloverObject("nav_mission",	126, 18, defaultInactivePath, defaultActivePath, defaultExt);
		rolloverImages["nav_programs"] 	= new rolloverObject("nav_programs",126, 18, defaultInactivePath, defaultActivePath, defaultExt);
		rolloverImages["nav_contact"]  	= new rolloverObject("nav_contact", 126, 18, defaultInactivePath, defaultActivePath, defaultExt);
			
		isCached = true;
		
	}
	
	function rolloverObject(name, width, height, inactivePath, activePath, ext) {
		this.inactive      = new Image(width, height);
		this.inactive.src  = 'images/' + name + ext;
		this.active        = new Image(width, height);
		this.active.src    = 'images/' + name + defaultActivePath + ext;
		return true;
	}
	
	function activate(imageName) {
		if (document.images && isCached) document.images[imageName].src = rolloverImages[imageName].active.src;
		return true
	}
	
	function deactivate(imageName) {
		if (document.images && isCached) document.images[imageName].src = rolloverImages[imageName].inactive.src;
		return true
	}	
		
	// -->