email_input_value = "enter email address for updates";

function clear_header_form(input_value) {
email_input_value = input_value;
document.headerform.email.value = "";
}

function reset_header_form() {
if (document.headerform.email.value == "") {
document.headerform.email.value = email_input_value;
}
}


function showsubmenu(whichone) {

if (document.getElementById) {

for (x=1;x<7;x++) {

submenuitem = "sub_menu_area_" + x;

document.getElementById(submenuitem).style.display="none";

current_background_on = "menu_" + x + "_background_on";

document.getElementById(current_background_on).style.display="none";

current_background_off = "menu_" + x + "_background_off";

document.getElementById(current_background_off).style.display="block";

}


current_background_off = "menu_" + whichone + "_background_off";

document.getElementById(current_background_off).style.display="none";

current_background_on = "menu_" + whichone + "_background_on";

document.getElementById(current_background_on).style.display="block";


current = "sub_menu_area_" + whichone;

document.getElementById(current).style.display="block";



} else {

for (x=1;x<7;x++) {

submenuitem = "sub_menu_area_" + x;

submenuitem.style.display="none";

current_background_on = "menu_" + x + "_background_on";

current_background_on.style.display="none";

current_background_off = "menu_" + x + "_background_off";

current_background_off.style.display="block";

}


current_background_off = "menu_" + whichone + "_background_off";

current_background_off.style.display="none";

current_background_on = "menu_" + whichone + "_background_on";

current_background_on.style.display="block";

current = "sub_menu_area_" + whichone;

current.style.display="block";



}

}


function clearsubmenu() {

if (document.getElementById) {

for (x=1;x<7;x++) {

submenuitem = "sub_menu_area_" + x;

document.getElementById(submenuitem).style.display="none";

current_background_on = "menu_" + x + "_background_on";

document.getElementById(current_background_on).style.display="none";

current_background_off = "menu_" + x + "_background_off";

document.getElementById(current_background_off).style.display="block";

}



} else {

for (x=1;x<7;x++) {

submenuitem = "sub_menu_area_" + x;

submenuitem.style.display="none";

current_background_on = "menu_" + x + "_background_on";

current_background_on.style.display="none";

current_background_off = "menu_" + x + "_background_off";

current_background_off.style.display="block";

}


}

}


<!--

userAgent = window.navigator.userAgent;
browserVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1),10);
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function findElement(n,ly) {
	if (browserVers < 4)		return document[n];
	var curDoc = ly ? ly.document : document;
	var elem = curDoc[n];
	if (!elem) {
		for (var i=0;i<curDoc.layers.length;i++) {
			elem = findElement(n,curDoc.layers[i]);
			if (elem) return elem;
		}
	}
	return elem;
}

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

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		nav_about_over = newImage("assets/images/nav_about-over.gif");
		nav_dp_over = newImage("assets/images/nav_dp-over.gif");
		nav_fac_over = newImage("assets/images/nav_fac-over.gif");
		nav_getinv_over = newImage("assets/images/nav_getinv-over.gif");
		nav_press_over = newImage("assets/images/nav_press-over.gif");
		nav_contact_over = newImage("assets/images/nav_contact-over.gif");
		get_involved_over = newImage("assets/images/get_involved_on.gif");
		email_friend_over = newImage("assets/images/email_friend_on.gif");
		gradient_over = newImage("/private/incl/gradient-on.gif");
		preloadFlag = true;
	}
}

// -->