// BROWSER BASED SUBMENU DISPLAY
var ns4 = (document.layers) ? true : false;
var ie4 = (document.all && !document.getElementById) ? true : false;
var ie5 = (document.all && document.getElementById) ? true : false;
var ns6 = (!document.all && document.getElementById) ? true : false;

nav_company_on = new Image;
nav_company_on.src = "images/nav_company.on.gif"
nav_company_off = new Image;
nav_company_off.src = "images/nav_company.off.gif"

nav_products_on = new Image;
nav_products_on.src = "images/nav_products.on.gif"
nav_products_off = new Image;
nav_products_off.src = "images/nav_products.off.gif"

nav_quality_on = new Image;
nav_quality_on.src = "images/nav_quality.on.gif"
nav_quality_off = new Image;
nav_quality_off.src = "images/nav_quality.off.gif"

nav_careers_on = new Image;
nav_careers_on.src = "images/nav_careers.on.gif"
nav_careers_off = new Image;
nav_careers_off.src = "images/nav_careers.off.gif"

nav_search_on = new Image;
nav_search_on.src = "images/nav_search.on.gif"
nav_search_off = new Image;
nav_search_off.src = "images/nav_search.off.gif"

nav_contact_on = new Image;
nav_contact_on.src = "images/nav_contact.on.gif"
nav_contact_off = new Image;
nav_contact_off.src = "images/nav_contact.off.gif"

function show(sw,obj,sub) {
	//hide products when obj = company & vise versa
	if (sw == true) {
		if ((obj == "company") || (obj == "quality")) {
			show(false,"products",true)
		}
		else if (obj == "products") {
			show(false,"company",true)
		}
	}
	// show/hide the divisions
	if (sw && (ie4 || ie5) ) {
		document.images[obj].src = eval("nav_" + obj + "_on.src");
		obj = "menu_" + obj;
		obj = eval(document.all[obj]);
		var phase = "visible";
	}
	if (!sw && (ie4 || ie5) ) {
		document.images[obj].src = eval("nav_" + obj + "_off.src");
		obj = "menu_" + obj;
		obj = eval(document.all[obj]);
		var phase = "hidden";
	}
	if (sw && ns4) {
		document.images[obj].src = eval("nav_" + obj + "_on.src");
		obj = "menu_" + obj;
		obj = eval(document.layers[obj]);
		var phase = "visible";
	}
	if (!sw && ns4) {
		document.images[obj].src = eval("nav_" + obj + "_off.src");
		obj = "menu_" + obj;
		obj = eval(document.layers[obj]);
		var phase = "hidden";
	}
	if (sw && ns6) {
		document.images[obj].src = eval("nav_" + obj + "_on.src");
		if (sub == true) {
			obj = "menu_" + obj;
			obj = eval(document.getElementById(obj))
			var phase = "visible";
		}
	}
	if (!sw && ns6) {
		document.images[obj].src = eval("nav_" + obj + "_off.src");
		if (sub == true) {
			obj = "menu_" + obj;
			obj = eval(document.getElementById(obj))
			var phase = "hidden";
		}
	}
	if (sub == true) {
		obj.style.visibility = phase;
	}
}