// ROLLOVER NAV******************************************************************************************

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		nav_fir_over = newImage("images/nav/nav_fir_over.jpg");
		nav_img_over = newImage("images/nav/nav_img_over.jpg");
		nav_app_over = newImage("images/nav/nav_app_over.jpg");
		nav_fla_over = newImage("images/nav/nav_fla_over.jpg");
		nav_get_over = newImage("images/nav/nav_get_over.jpg");
		nav_pol_over = newImage("images/nav/nav_pol_over.jpg");
		nav_des_over = newImage("images/nav/nav_des_over.jpg");
		nav_con_over = newImage("images/nav/nav_con_over.jpg");
		nav_cha_over = newImage("images/nav/nav_cha_over.jpg");
		enterimg_over = newImage("images/enter_over.jpg");
		exitimg_over = newImage("images/exit_over.jpg");
		preloadFlag = true;
	}
}
// END ROLLOVER NAV******************************************************************************************