var nav_current = new Array();
var nav_number = "8";
var sub_nav_on = "";
var main_nav_on = "";
var onto_next = "";

var img_links = new Array("", "home", "products", "services", "about", "testimonials", "vet", "search");
var curently_on = img_links[window.d_link];
var start_page = img_links[window.d_link];


function nav_on(l_on) {
window.main_nav_on = "Y";
window.onto_next = "";

		var field = "link_";
		field += l_on;

		document.getElementById(field).style.display = "";
		window.nav_current[l_on] = "Y";

		for (var numb=1; numb<window.nav_number; numb++) {

			if (l_on != numb) {
			window.nav_current[numb] = "";

			document.getElementById("link_" + numb).style.display = "none";

			document.getElementById("t" + numb).src = ('images/link_' + window.img_links[numb]  + '_off.gif');
			}else{
			document.getElementById("t" + numb).src = ('images/link_' + window.img_links[numb]  + '_on.gif');
			}

		}

window.curently_on = img_links[l_on];
}


function nav_off(l_off) {
window.curently_on = "";
window.onto_next = "Y";

window.nav_current[l_off] = "";
window.sub_nav_on = "";
window.main_nav_on = "";


	if (window.start_page != img_links[l_off]) {
	setTimeout(function(){turn_nav_off(l_off)}, 400);
	}
}





function turn_nav_off(ln_off) {

	//if (window.onto_next == "Y") {


	if (window.nav_current[ln_off] != "Y") {
	document.getElementById("link_" + ln_off).style.display = "none";
	document.getElementById("t" + ln_off).src = ('images/link_' + window.img_links[ln_off]  + '_off.gif');
	}



	setTimeout(function(){re_nav()}, 10);
}

function re_nav() {

	if (window.sub_nav_on != "Y" && window.main_nav_on != "Y") {

		if (window.d_link) {

		document.getElementById("t" + window.d_link).src = ('images/link_' + window.img_links[window.d_link]  + '_on.gif');
		document.getElementById("link_" + window.d_link).style.display = "";
		}

	}

}


function sub_nav(ln_on) {
window.nav_current[ln_on] = "Y";
window.sub_nav_on = "Y";
}