if(document.images !=null){preload()}



function preload() {

	nav01 = new Image();

	nav01.src = "images/nav_who.gif";

	nav02 = new Image();

	nav02.src = "images/nav_do.gif";

	nav03 = new Image();

	nav03.src = "images/nav_how.gif";

	nav04 = new Image();

	nav04.src = "images/nav_what.gif";

	nav05 = new Image();

	nav05.src = "images/nav_questions.gif";

	nav06 = new Image();

	nav06.src = "images/nav_contact.gif";
		
	nav17 = new Image();

	nav17.src = "images/hownav_discover.gif";
	
	nav18 = new Image();

	nav18.src = "images/hownav_plan.gif";
	
	nav19 = new Image();

	nav19.src = "images/hownav_design.gif";
	
	nav20 = new Image();

	nav20.src = "images/hownav_implement.gif";
	
	nav21 = new Image();

	nav21.src = "images/hownav_cultivate.gif";
	
	nav33 = new Image();
	
	nav33.src = "images/nav_login.gif";
	
	nav34 = new Image();

	nav34.src = "images/nav_employment.gif";
	
	
	
	
	nav01on = new Image();

	nav01on.src = "images/nav_who_on.gif";

	nav02on = new Image();

	nav02on.src = "images/nav_do_on.gif";

	nav03on = new Image();

	nav03on.src = "images/nav_how_on.gif";

	nav04on = new Image();

	nav04on.src = "images/nav_what_on.gif";

	nav05on = new Image();

	nav05on.src = "images/nav_questions_on.gif";

	nav06on= new Image();

	nav06on.src = "images/nav_contact_on.gif";
		
	nav17on = new Image();

	nav17on.src = "images/hownav_discover_on.gif";
	
	nav18on = new Image();

	nav18on.src = "images/hownav_plan_on.gif";
	
	nav19on = new Image();

	nav19on.src = "images/hownav_design_on.gif";
	
	nav20on = new Image();

	nav20on.src = "images/hownav_implement_on.gif";
	
	nav21on = new Image();

	nav21on.src = "images/hownav_cultivate_on.gif";
	
	nav33on = new Image();
	
	nav33on.src = "images/nav_login_on.gif";
	
	nav34on = new Image();

	nav34on.src = "images/nav_employment_on.gif";

	

}



function switchImages(title, title_name){

	if(document.images != null){

		var titleOn = (title.length == 7);

		title = eval(title + ".src");

		document[title_name].src = title;

		title = title_name + "_arrow";

		

	}

}