//top array navigation rollovers
 var pics = new Array("images/navigation_bullet_over.gif");
 
 // create an empty array
 var preload = new Array();
 
 // create the preload with a new image object
 for(var i =0; i <pics.length; i++)
 {	
 	preload[i] = new Image();
	preload[i].src = pics[i];
 }
 
function swap(n)
 {
switch(n)
	 {
	case 1 : document.images.home.src="images/navigation_bullet_over.jpg";
	break;
	case 2 : document.images.home.src="images/navigation_bullet.gif";
	break;
	case 3 : document.images.services.src="images/navigation_bullet_over.jpg";
	break;
	case 4 : document.images.services.src="images/navigation_bullet.gif";
	break;
	case 5 : document.images.health.src="images/navigation_bullet_over.jpg";
	break;
	case 6 : document.images.health.src="images/navigation_bullet.gif";
	break;
	case 7 : document.images.schools.src="images/navigation_bullet_over.jpg";
	break;
	case 8 : document.images.schools.src="images/navigation_bullet.gif";
	break;
	case 9 : document.images.quality.src="images/navigation_bullet_over.jpg";
	break;
	case 10 : document.images.quality.src="images/navigation_bullet.gif";
	break;
	case 11 : document.images.equipment.src="images/navigation_bullet_over.jpg";
	break;
	case 12 : document.images.equipment.src="images/navigation_bullet.gif";
	break;
	case 13 : document.images.clients.src="images/navigation_bullet_over.jpg";
	break;
	case 14 : document.images.clients.src="images/navigation_bullet.gif";
	break;
	 }
 }