if (document.images) {
	//top nav
	nav01out = new Image;
	nav01ovr = new Image;

	nav02out = new Image;
	nav02ovr = new Image;
	nav03out = new Image;
	nav03ovr = new Image;
	nav04out = new Image;
	nav04ovr = new Image;
	nav05out = new Image;
	nav05ovr = new Image;
	
	nav01out.src = "gfx/nav_top_why_out.gif"; 
	nav01ovr.src = "gfx/nav_top_why_ovr.gif";
	nav02out.src = "gfx/nav_top_industry_out.gif"; 
	nav02ovr.src = "gfx/nav_top_industry_ovr.gif";
	nav03out.src = "gfx/nav_top_capabilities_out.gif"; 
	nav03ovr.src = "gfx/nav_top_capabilities_ovr.gif";
	nav04out.src = "gfx/nav_top_doccenter_out.gif"; 
	nav04ovr.src = "gfx/nav_top_doccenter_ovr.gif";
	nav05out.src = "gfx/nav_top_contact_out.gif"; 
	nav05ovr.src = "gfx/nav_top_contact_ovr.gif";

	//ind app nav
	sep01hid = new Image;
	sep01out = new Image;
	nav06hid = new Image;
	nav06out = new Image;
	nav06ovr = new Image;
	nav07hid = new Image;
	nav07out = new Image;
	nav07ovr = new Image;
	nav08hid = new Image;
	nav08out = new Image;
	nav08ovr = new Image;
	nav09hid = new Image;
	nav09out = new Image;
	nav09ovr = new Image;
	nav10hid = new Image;
	nav10out = new Image;
	nav10ovr = new Image;
	
	sep01hid.src = "gfx/spacer_white.gif";
	sep01out.src = "gfx/seperator_gray.gif";
	nav06hid.src = "gfx/nav_app_ortho_hid.gif";
	nav06out.src = "gfx/nav_app_ortho_out.gif";
	nav06ovr.src = "gfx/nav_app_ortho_ovr.gif";
	nav07hid.src = "gfx/nav_app_saftey_hid.gif";
	nav07out.src = "gfx/nav_app_saftey_out.gif";
	nav07ovr.src = "gfx/nav_app_saftey_ovr.gif";
	nav08hid.src = "gfx/nav_app_fishing_hid.gif";
	nav08out.src = "gfx/nav_app_fishing_out.gif";
	nav08ovr.src = "gfx/nav_app_fishing_ovr.gif";
	nav09hid.src = "gfx/nav_app_prop_hid.gif";
	nav09out.src = "gfx/nav_app_prop_out.gif";
	nav09ovr.src = "gfx/nav_app_prop_ovr.gif";
	nav10hid.src = "gfx/nav_app_apparel_hid.gif";
	nav10out.src = "gfx/nav_app_apparel_out.gif";
	nav10ovr.src = "gfx/nav_app_apparel_ovr.gif";

	//box nav
	nav11out = new Image;
	nav11ovr = new Image;
	nav12out = new Image;
	nav12ovr = new Image;
	nav13out = new Image;
	nav13ovr = new Image;
	nav14out = new Image;
	nav14ovr = new Image;
	nav15out = new Image;
	nav15ovr = new Image;
	nav16out = new Image;
	nav16ovr = new Image;
	nav17out = new Image;
	nav17ovr = new Image;
	
	nav11out.src = "gfx/nav_home_prop1_out.gif"; 
	nav11ovr.src = "gfx/nav_home_prop1_ovr.gif";
	nav12out.src = "gfx/nav_home_capabilities_out.gif"; 
	nav12ovr.src = "gfx/nav_home_capabilities_ovr.gif";
	nav13out.src = "gfx/nav_home_safety_out.gif"; 
	nav13ovr.src = "gfx/nav_home_safety_ovr.gif";
	nav14out.src = "gfx/nav_home_prop2_out.gif"; 
	nav14ovr.src = "gfx/nav_home_prop2_ovr.gif";
	nav15out.src = "gfx/nav_home_apparel_out.gif"; 
	nav15ovr.src = "gfx/nav_home_apparel_ovr.gif";
	nav16out.src = "gfx/nav_home_fishing_out.gif"; 
	nav16ovr.src = "gfx/nav_home_fishing_ovr.gif";
	nav17out.src = "gfx/nav_home_ortho_out.gif"; 
	nav17ovr.src = "gfx/nav_home_ortho_ovr.gif";

	//ind app sub nav
	nav18out = new Image;
	nav18ovr = new Image;
	nav19out = new Image;
	nav19ovr = new Image;
	nav20out = new Image;
	nav20ovr = new Image;
	nav21out = new Image;
	nav21ovr = new Image;
	nav22out = new Image;
	nav22ovr = new Image;
	
	nav18out.src = "gfx/nav_sub2_ortho_out.gif";
	nav18ovr.src = "gfx/nav_sub2_ortho_ovr.gif";
	nav19out.src = "gfx/nav_sub2_safety_out.gif"; 
	nav19ovr.src = "gfx/nav_sub2_safety_ovr.gif";
	nav20out.src = "gfx/nav_sub2_fishing_out.gif"; 
	nav20ovr.src = "gfx/nav_sub2_fishing_ovr.gif";
	nav21out.src = "gfx/nav_sub2_prop_out.gif"; 
	nav21ovr.src = "gfx/nav_sub2_prop_ovr.gif";
	nav22out.src = "gfx/nav_sub2_apparel_out.gif"; 
	nav22ovr.src = "gfx/nav_sub2_apparel_ovr.gif"; 
}

function chgImg(imgField,newImg) {
	if (document.images) {
		document[imgField].src= eval(newImg + ".src")
	}
}

function swapImg(imgField,newImg,nSwap,nAppNav,sAppNav) {
	if (parseInt(nSwap)==1 || sAppNav == "O" || sAppNav == "S" || sAppNav == "F" || sAppNav == "P" || sAppNav == "A") {
		chgImg(imgField,newImg);
		if (parseInt(nAppNav)==1)
			showAppNav(sAppNav);
		else
			hideAppNav();
	}
	nGAppNav = nAppNav;
	return true;
}

function showAppNav(sAppNav){
	if (sAppNav == "O")
		chgImg('o2','nav06ovr');
	else 
		chgImg('o2','nav06out');

	if (sAppNav == "S")
		chgImg('s2','nav07ovr');
	else 
		chgImg('s2','nav07out');

	if (sAppNav == "F")
		chgImg('f2','nav08ovr');
	else 
		chgImg('f2','nav08out');

	if (sAppNav == "P")
		chgImg('p2','nav09ovr');
	else 
		chgImg('p2','nav09out');

	if (sAppNav == "A")
		chgImg('a2','nav10ovr');
	else 
		chgImg('a2','nav10out');

	chgImg('sep01','sep01out');
	chgImg('sep02','sep01out');
	chgImg('sep03','sep01out');
	chgImg('sep04','sep01out');
}

function hideAppNav(){
	chgImg('o2','nav06hid');
	chgImg('s2','nav07hid');
	chgImg('f2','nav08hid');
	chgImg('p2','nav09hid');
	chgImg('a2','nav10hid');
	chgImg('sep01','sep01hid');
	chgImg('sep02','sep01hid');
	chgImg('sep03','sep01hid');
	chgImg('sep04','sep01hid');
}