js_root = "";
	ns4 = (document.layers)? true:false; // netscape 4?
	ie4 = (document.all)? true:false; // internet explorer 4/5?
	ns6 = (ns4|ie4)? false:true; // (Netscape 6)
	
	selected_menu = "null";
	
	js_temp_layer = "null";
	menu_timeout = "";
	
	current_menu = "null";
	menu_td_timeout = "";

function pnav_roll (this_menu) {
 	clearTimeout(menu_timeout);
	closeAllMenus();
	if (current_menu != "null") {
		nav_off_enact(current_menu);
	}		

	if (selected_menu != "null")
	{
		//var sel_img_name = "nav_secp_" + selected_menu;
		//document.images[selected_menu].src = "images/" + sel_img_name + "_on.gif";
	}
		
	
	//var img_name = "nav_secp_" + this_menu;
	//document.images[this_menu].src = eval(img_name + "_on.src");
	
	openMenuImmediate(this_menu);
	current_menu = this_menu;
}


function pnav_off(this_menu) {
 	clearTimeout(menu_timeout);
 	js_temp_layer = this_menu;
	menu_timeout = setTimeout("nav_off_enact(js_temp_layer)",1000);
}


function nav_off_enact (this_menu) {
	closeAllMenus();
	//var img_name = "nav_secp_" + this_menu;
	//document.images[this_menu].src = eval(img_name + "_off.src")	
}

function hold_menu() {

 	clearTimeout(menu_timeout);
	// Blank place holder image.  Just return.

}

function reset_menu() {
	
	menu_timeout = setTimeout("nav_off_enact(js_temp_layer)",1000);
	// Blank place holder image.  Just return.

}

function closeAllMenus() {
	if (document.layers) {
		window.document.layers['aboutmenu'].visibility = "hidden";
		window.document.layers['servicesmenu'].visibility = "hidden";
		window.document.layers['trainingmenu'].visibility = "hidden";		
	} else {
		returnElement("aboutmenu").style.visibility = "hidden";
		returnElement("servicesmenu").style.visibility = "hidden";
		returnElement("trainingmenu").style.visibility = "hidden";		
	}

	if (selected_menu != "null")
	{
		//var sel_img_name = "nav_secp_" + selected_menu;
		//document.images[selected_menu].src = eval(sel_img_name + "_off.src");
	}
}

function openMenuImmediate(in_menu) {
	closeAllMenus();
	var layer_to_change = in_menu.toString() + "menu";
	if (document.layers) {
		window.document.layers[layer_to_change].visibility = "show";
	}
	else {
		returnElement(in_menu + "menu").style.visibility = "visible";
	}

	if (selected_menu != "null")
	{
		//var sel_img_name = "nav_secp_" + selected_menu;
		if (selected_menu == in_menu)
		{
			//document.images[selected_menu].src = "images/" + sel_img_name + "_on.gif";
		}
		else
		{
			//document.images[selected_menu].src = "images/" + sel_img_name + "_on.gif";
		}
	}
}

function returnElement(thename) {

	if (document.all) {
		return eval("window.document.all." + thename);
	} else {
		if (document.layers) {
			return eval("window.document.layers['" + thename + "']");
		} else {
			return window.document.getElementById(thename);
		}
	}

}