/* -- Adobe GoLive JavaScript Library */

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function changeImagesArray(array) {
	if (preloadFlag == true) {
		var d = document; var img;
		for (var i=0; i<array.length; i+=2) {
			img = null; var n = array[i];
			if (d.images) {img = d.images[n];}
			if (!img && d.getElementById) {img = d.getElementById(n);}
			if (img) {img.src = array[i+1];}
		}
	}
}

function changeImages() {
	changeImagesArray(changeImages.arguments);
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		pre_nav_contact_on = newImage('images/nav_contact_on.png');
		pre_nav_locations_on = newImage('images/nav_locations_on.png');
		pre_nav_news_on = newImage('images/nav_news_on.png');
		pre_nav_doctors_on = newImage('images/nav_doctors_on.png');
		pre_nav_client_on = newImage('images/nav_client_on.png');
		pre_nav_about_on = newImage('images/nav_about_on.png');
		pre_nav_home_on = newImage('images/nav_home_on.png');
		pre_nav_surgeries_on = newImage('images/nav_surgeries_on.jpg');
		pre_nav_links_on = newImage('images/nav_links_on.jpg');
		pre_nav_faq_on = newImage('images/nav_faq_on.jpg');
		pre_nav_expect_on = newImage('images/nav_expect_on.jpg');
		pre_nav_form_on = newImage('images/nav_form_on.jpg');
		pre_nav_emergencies_on = newImage('images/nav_emergencies_on.jpg');
		pre_nav_eyediseases_on = newImage('images/nav_eyediseases_on.jpg');
		preloadFlag = true;
	}
}

var subMenus = new Array ('sub1', 'sub2','sub3');

function show_menu (menu) {
	for (var i = 0; i < subMenus.length; ++i) {
			document.getElementById(subMenus[i]).style.display='none';
	}
	if (menu){
	document.getElementById(menu).style.display='block';
}
}