<!-- Original:  Angus Turnbull -->
<!-- Web Site:  http://gusnz.cjb.net -->
<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->

<!-- Begin
var isDOM = (document.getElementById ? true : false); 
var isIE4 = ((document.all && !isDOM) ? true : false);
var isNS4 = (document.layers ? true : false);
function getRef(id) {
	if (isDOM) return document.getElementById(id);
	if (isIE4) return document.all[id];
	if (isNS4) return document.layers[id];
	}
function getSty(id) {
	return (isNS4 ? getRef(id) : getRef(id).style);
	}
	 
// Hide timeout.
var popTimer = 0;
// Locate menu under Voiceboard title bar
var vbmenuhoffset=20;
var vbmenuvoffset=105;

// Array showing highlighted menu items.
var litNow = new Array();
function popOver(menuNum, itemNum) {
	clearTimeout(popTimer);
	hideAllBut(menuNum);
	litNow = getTree(menuNum, itemNum);
	changeCol(litNow, true);
	targetNum = menu[menuNum][itemNum].target;
	if (targetNum > 0) {
		thisX = parseInt(menu[menuNum][0].ref.left) + parseInt(menu[menuNum][itemNum].ref.left);
		thisY = parseInt(menu[menuNum][0].ref.top) + parseInt(menu[menuNum][itemNum].ref.top);
		with (menu[targetNum][0].ref) {
			left = parseInt(thisX + menu[targetNum][0].x);
			top = parseInt(thisY + menu[targetNum][0].y);
			visibility = 'visible';
			}
		}
	}
	
function popOut(menuNum, itemNum) {
	if ((menuNum == 0) && !menu[menuNum][itemNum].target)
		hideAllBut(0)
	else
		popTimer = setTimeout('hideAllBut(0)', 500);
	}

function getTree(menuNum, itemNum) {
	// Array index is the menu number. The contents are null (if that menu is not a parent)
	// or the item number in that menu that is an ancestor (to light it up).
	itemArray = new Array(menu.length);
	
	while(1) {
		itemArray[menuNum] = itemNum;
		// If we've reached the top of the hierarchy, return.
		if (menuNum == 0) return itemArray;
		itemNum = menu[menuNum][0].parentItem;
		menuNum = menu[menuNum][0].parentMenu;
		}
	}
	
// Pass an array and a boolean to specify colour change, true = over colour.
function changeCol(changeArray, isOver) {
	for (menuCount = 0; menuCount < changeArray.length; menuCount++) {
		if (changeArray[menuCount]) {
			newCol = isOver ? menu[menuCount][0].overCol : menu[menuCount][0].backCol;
			// Change the colours of the div/layer background.
			with (menu[menuCount][changeArray[menuCount]].ref) {
				if (isNS4) bgColor = newCol;
				else backgroundColor = newCol;
				}
			}
		}
	}
	
function hideAllBut(menuNum) {
	var keepMenus = getTree(menuNum, 1);
	for (count = 0; count < menu.length; count++)
		if (!keepMenus[count])
			menu[count][0].ref.visibility = 'hidden';
	changeCol(litNow, false);
	}
// *** MENU CONSTRUCTION FUNCTIONS ***

function Menu(isVert, popInd, x, y, width, overCol, backCol, borderClass, textClass) {
	// True or false - a vertical menu?
	this.isVert = isVert;
	// The popout indicator used (if any) for this menu.
	this.popInd = popInd
	// Position and size settings.
	this.x = x;
	this.y = y;
	this.width = width;
	// Colours of menu and items.
	this.overCol = overCol;
	this.backCol = backCol;
	// The stylesheet class used for item borders and the text within items.
	this.borderClass = borderClass;
	this.textClass = textClass;
	// Parent menu and item numbers, indexed later.
	this.parentMenu = null;
	this.parentItem = null;
	// Reference to the object's style properties (set later).
	this.ref = null;
	}

function Item(text, href, frame, length, spacing, target) {
	this.text = text;
	this.href = href;
	this.frame = frame;
	this.length = length;
	this.spacing = spacing;
	this.target = target;
	// Reference to the object's style properties (set later).
	this.ref = null;
	}

function writeMenus() {
	if (!isDOM && !isIE4 && !isNS4) return;
	for (currMenu = 0; currMenu < menu.length; currMenu++) with (menu[currMenu][0]) {
		// Variable for holding HTML for items and positions of next item.
		var str = '', itemX = 0, itemY = 0;
		// Remember, items start from 1 in the array (0 is menu object itself, above).
		// Also use properties of each item nested in the other with() for construction.
		for (currItem = 1; currItem < menu[currMenu].length; currItem++) with (menu[currMenu][currItem]) {
			var itemID = 'menu' + currMenu + 'item' + currItem;
			// The width and height of the menu item - dependent on orientation!
			var w = (isVert ? width : length);
			var h = (isVert ? length : width);
			// Create a div or layer text string with appropriate styles/properties.
			// Thanks to Paul Maden (www.paulmaden.com) for helping debug this in IE4, apparently
			// the width must be a miniumum of 3 for it to work in that browser.
			if (isDOM || isIE4) {
				str += '<div id="' + itemID + '" style="position: absolute; left: ' + itemX + '; top: ' + itemY + '; width: ' + w + '; height: ' + h + '; visibility: inherit; ';
				if (backCol) str += 'background: ' + backCol + '; ';
				str += '" ';
				}
			if (isNS4) {
				str += '<layer id="' + itemID + '" left="' + itemX + '" top="' + itemY + '" width="' +  w + '" height="' + h + '" visibility="inherit" ';
				if (backCol) str += 'bgcolor="' + backCol + '" ';
				}
			if (borderClass) str += 'class="' + borderClass + '" ';
			// Add mouseover handlers and finish div/layer.
			str += 'onMouseOver="popOver(' + currMenu + ',' + currItem + ')" onMouseOut="popOut(' + currMenu + ',' + currItem + ')">';
			// Add contents of item (default: table with link inside).
			// In IE/NS6+, add padding if there's a border to emulate NS4's layer padding.
			// If a target frame is specified, also add that to the <a> tag.
			str += '<table width="' + (w - 8) + '" border="0" cellspacing="0" cellpadding="' + (!isNS4 && borderClass ? 3 : 0) + '"><tr><td align="left" height="' + (h - 7) + '">' + '<a class="' + textClass + '" href="' + href + '"' + (frame ? ' target="' + frame + '">' : '>') + text + '</a></td>';
			if (target > 0) {
				// Set target's parents to this menu item.
				menu[target][0].parentMenu = currMenu;
				menu[target][0].parentItem = currItem;
				// Add a popout indicator.
				if (popInd) str += '<td class="' + textClass + '" align="right">' + popInd + '</td>';
				}
			str += '</tr></table>' + (isNS4 ? '</layer>' : '</div>');
			if (isVert) itemY += length + spacing;
			else itemX += length + spacing;
			}
		if (isDOM) {
			var newDiv = document.createElement('div');
			document.getElementsByTagName('body').item(0).appendChild(newDiv);
			newDiv.innerHTML = str;
			ref = newDiv.style;
			ref.position = 'absolute';
			ref.visibility = 'hidden';
			}
		// Insert a div tag to the end of the BODY with menu HTML in place for IE4.
		if (isIE4) {
			document.body.insertAdjacentHTML('beforeEnd', '<div id="menu' + currMenu + 'div" ' + 'style="position: absolute; visibility: hidden">' + str + '</div>');
			ref = getSty('menu' + currMenu + 'div');
			}
		// In NS4, create a reference to a new layer and write the items to it.
		if (isNS4) {
			ref = new Layer(0);
			ref.document.write(str);
			ref.document.close();
			}
		for (currItem = 1; currItem < menu[currMenu].length; currItem++) {
			itemName = 'menu' + currMenu + 'item' + currItem;
			if (isDOM || isIE4) menu[currMenu][currItem].ref = getSty(itemName);
			if (isNS4) menu[currMenu][currItem].ref = ref.document[itemName];
			}
		}
	with(menu[0][0]) {
		ref.left = x+vbmenuhoffset;
		ref.top = y+vbmenuvoffset;
		ref.visibility = 'visible';
		}
	}

// Syntaxes: *** START EDITING HERE, READ THIS SECTION CAREFULLY! ***
//
// menu[menuNumber][0] = new Menu(Vertical menu? (true/false), 'popout indicator', left, top,
// width, 'mouseover colour', 'background colour', 'border stylesheet', 'text stylesheet');
//
// Left and Top are measured on-the-fly relative to the top-left corner of its trigger, or
// for the root menu, the top-left corner of the page.
//
// menu[menuNumber][itemNumber] = new Item('Text', 'URL', 'target frame', length of menu item,
//  additional spacing to next menu item, number of target menu to popout);
//
// If no target menu (popout) is desired, set it to 0. Likewise, if your site does not use
// frames, pass an empty string as a frame target.
//
// Something that needs explaining - the Vertical Menu setup. You can see most menus below
// are 'true', that is they are vertical, except for the first root menu. The 'length' and
// 'width' of an item depends on its orientation -- length is how long the item runs for in
// the direction of the menu, and width is the lateral dimension of the menu. Just look at
// the examples and tweak the numbers, they'll make sense eventually :).

var menu = new Array();

// Default colours passed to most menu constructors (just passed to functions, not
// a global variable - makes things easier to change later in bulk).
var defOver = '#ffffff', defBack = '#ffffff';

// Default 'length' of menu items -item height, since menu is vertical, else width if horizontal.
var defLength = 20;

// Menu 0 is the special, 'root' menu from which everything else arises.
menu[0] = new Array();
// A non-vertical menu with a few different colours and no popout indicator, as an example.
// *** MOVE ROOT MENU AROUND HERE ***  it's positioned at (5, 0) and is 17px high now.
menu[0][0] = new Menu(false, '', 5, 0, 17, '#ffddaa', '#ffffcc', '', 'itemText');
// Notice how the targets are all set to nonzero values...
// The 'length' of each of these items is 40, and there is spacing of 10 to the next item.
menu[0][1] = new Item('Site Map', '/vb_map.html', '', 55, 16, 0);
menu[0][2] = new Item('Company', '/vb_info.html', '', 50, 16, 1);
menu[0][3] = new Item('News', '/vb_news.html', '', 30, 16, 0);
menu[0][4] = new Item('Radio Interoperability', '/Subs/vb_sys_interop.html', '', 125, 16, 0);
menu[0][5] = new Item('cPCI', '/vb_cpci.html', '', 30, 16, 2);
menu[0][6] = new Item('VME', '/vb_vme.html', '', 30, 16, 3);
menu[0][7] = new Item('PMC/PTMC', '/Subs/vb_pmc_5441.html', '', 60, 16, 4);
menu[0][8] = new Item('Applications', '/vb_apps.html', '', 60, 16, 5);
menu[0][9] = new Item('SS7/ISDN', '/vb_ss7.html', '', 50, 16, 6);
menu[0][10] = new Item('VoIP', '/vb_voip.html', '', 30, 16, 7);
menu[0][11] = new Item('Software', '/vb_dsp.html', '', 60, 16, 8);
menu[0][12] = new Item('Prof Services', '/vb_mp.html', '', 80, 16, 0);
menu[0][13] = new Item('Support', '/vb_support.html', '', 50, 16, 0);

// The sub menus consist of the 0 element (box) and the line items 1-n.
// The 'greater-than' sign '>' is a popout indicator.
// Parameters are pixels acroos and down from trigger, and width.
// All text in this menu has the stylesheet class 'item' -- see the <style> section above.

// Company menu.
menu[1] = new Array();
menu[1][0] = new Menu(true, '>', 0, 22, 100, defOver, defBack, 'itemBorder', 'itemText');
menu[1][1] = new Item('     Index', '/vb_info.html', '', defLength, 0, 0);
menu[1][2] = new Item('      News', '/vb_news.html', '', defLength, 0, 0);
menu[1][3] = new Item('   Mission', '/Subs/vb_ci_miss.html', '', defLength, 0, 0);
menu[1][4] = new Item('   Markets', '/Subs/vb_ci_mark.html', '', defLength, 0, 0);
menu[1][5] = new Item('   History', '/Subs/vb_ci_hist.html', '', defLength, 0, 0); 
menu[1][6] = new Item('Corp Brochure', '/PDFs/br-1003.pdf', '', defLength, 0, 0); 
menu[1][7] = new Item('Employment', '/Subs/vb_ci_emp.html', '', defLength, 0, 0);
menu[1][8] = new Item('   Contact', '/Subs/vb_ci_cont.html', '', defLength, 0, 0);
menu[1][9] = new Item('  Location', '/Subs/vb_ci_map.html', '', defLength, 0, 0);
menu[1][10] = new Item('Local Area', '/Subs/vb_ci_info.html', '', defLength, 0, 0);

// News menu
var array_elem=0;
menu[11] = new Array();
menu[11][array_elem++] = new Menu(true, '>', 0, 22, 255, defOver, defBack, 'itemBorder', 'itemText');
menu[11][array_elem++] = new Item('       Index', '/vb_news.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('Voceboard Uses Enea Element Middleware', '/Subs/vb_news_15.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('BridgeWay 8M Mobile Gateway', '/Subs/vb_news_14.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('Technology Marketing Product of the Year', '/Subs/vb_news_13.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('BridgeWay cPCI Radio Gateway', '/Subs/vb_news_12.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('cPCI Subrate Switch', '/Subs/vb_news_11.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('Telephony Magazine product of the Year', '/Subs/vb_news_10.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('cPCI TDM to Packet Processor', '/Subs/vb_news_9.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('T1/E1/J1 for cPCI', '/Subs/vb_news_8.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('Single Blade H.323 Gateway', '/Subs/vb_news_7.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('240 Port DSP PMC', '/Subs/vb_news_6.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('DSP Developer Kit', '/Subs/vb_news_5.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('VME VoIP Gateway', '/Subs/vb_news_4.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('240 Port PTMC for VoIP', '/Subs/vb_news_3.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('Single Blade Media Gateway', '/Subs/vb_news_2.html', '', defLength, 0, 0);
menu[11][array_elem++] = new Item('Single Blade SS7 Gateway', '/Subs/vb_news_1.html', '', defLength, 0, 0);

// Systems menu
menu[12] = new Array();
menu[12][0] = new Menu(true, '>', 0, 22, 130, defOver, defBack, 'itemBorder', 'itemText');
menu[12][1] = new Item('                 Index', '/vb_systems.html', '', defLength, 0, 0);
menu[12][2] = new Item('Radio Interoperability', '/Subs/vb_sys_interop.html', '', defLength, 0, 0);

// cPCI menu.
menu[2] = new Array();
menu[2][0] = new Menu(true, '>', 0, 22, 100, defOver, defBack, 'itemBorder', 'itemText');
menu[2][1] = new Item('        Index', '/vb_cpci.html', '', defLength, 0, 0);
menu[2][2] = new Item(' Tip/Ring FXS', '/Subs/vb_cpci_fxs.html', '', defLength, 0, 0);
menu[2][3] = new Item(' Tip/Ring FXO', '/Subs/vb_cpci_fxo.html', '', defLength, 0, 0);
menu[2][4] = new Item('SuperSpanT1E1', '/Subs/vb_cpci_cs3x.html', '', defLength, 0, 0);
menu[2][5] = new Item(' T1/E1, T3/E3', '/Subs/vb_cpci_mac.html', '', defLength, 0, 0);
menu[2][6] = new Item('  Telecom E&M', '/Subs/vb_cpci_EM.html', '', defLength, 0, 0);

// VME menu
menu[3] = new Array();
menu[3][0] = new Menu(true, '>', 0, 22, 100, defOver, defBack, 'itemBorder', 'itemText');
menu[3][1] = new Item('        Index', '/vb_vme.html', '', defLength, 0, 0);
menu[3][2] = new Item('SuperspanT1E1', '/Subs/vb_vme_vs3x.html', '', defLength, 0, 0);
menu[3][3] = new Item(' 4 Wire Audio', '/Subs/vb_vme_va.html', '', defLength, 0, 0);
menu[3][4] = new Item('   Basic Rate', '/Subs/vb_vme_bri.html', '', defLength, 0, 0);
menu[3][5] = new Item('   Analog FXS', '/Subs/vb_vme_fxs.html', '', defLength, 0, 0);
menu[3][6] = new Item('   Analog FXO', '/Subs/vb_vme_fxo.html', '', defLength, 0, 0);
menu[3][7] = new Item('Radio-telecom', '/Subs/vb_vme_cai.html', '', defLength, 0, 0);

// PMC menu
menu[4] = new Array();
menu[4][0] = new Menu(true, '>', 0, 22, 100, defOver, defBack, 'itemBorder', 'itemText');
menu[4][1] = new Item('    PMC41 DSP', '/Subs/vb_pmc_5441.html', '', defLength, 0, 0);
menu[4][2] = new Item('   PTMC41 DSP', '/Subs/vb_ptmc_5441.html', '', defLength, 0, 0);
menu[4][3] = new Item('  DSP Dev Kit', '/PDFs/S-1033.pdf', '', defLength, 0, 0);

// Applications menu
menu[5] = new Array();
menu[5][0] = new Menu(true, '>', 0, 22, 100, defOver, defBack, 'itemBorder', 'itemText');
menu[5][1] = new Item('        Index', '/vb_apps.html', '', defLength, 0, 0);
menu[5][2] = new Item('     Military', '/Subs/vb_apps_mil.html', '', defLength, 0, 0);
menu[5][3] = new Item('     Wireless', '/Subs/vb_apps_wless.html', '', defLength, 0, 0);
menu[5][4] = new Item('      IVR/UMS', '/Subs/vb_apps_ums.html', '', defLength, 0, 0);
menu[5][5] = new Item('   Monitoring', '/Subs/vb_apps_mon.html', '', defLength, 0, 0);
menu[5][6] = new Item(' VoIP Gateway', '/Subs/vb_apps_gw.html', '', defLength, 0, 0);
menu[5][7] = new Item('Voice Logging', '/Subs/vb_apps_log.html', '', defLength, 0, 0);
menu[5][8] = new Item(' White Papers', '/vb_white.html', '', defLength, 0, 0);

// SS7/ISDN menu
menu[6] = new Array();
menu[6][0] = new Menu(true, '>', 0, 22, 100, defOver, defBack, 'itemBorder', 'itemText');
menu[6][1] = new Item('        Index', '/vb_ss7.html', '', defLength, 0, 0);
menu[6][2] = new Item(' SS7 Software', '/Subs/vb_ss7_sw.html', '', defLength, 0, 0);
menu[6][3] = new Item(' SS7 Hardware', '/Subs/vb_ss7_hw.html', '', defLength, 0, 0);
menu[6][4] = new Item(' PRI/BRI ISDN', '/Subs/vb_ss7_isdn.html', '', defLength, 0, 0);

// VoIP menu
menu[7] = new Array();
menu[7][0] = new Menu(true, '>', 0, 22, 100, defOver, defBack, 'itemBorder', 'itemText');
menu[7][1] = new Item('        Index', '/vb_voip.html', '', defLength, 0, 0);
menu[7][2] = new Item('     Software', '/Subs/vb_voip_voip.html', '', defLength, 0, 0);
menu[7][3] = new Item('      Gateway', '/Subs/vb_voip_gw.html', '', defLength, 0, 0);

// Software menu
menu[8] = new Array();
menu[8][0] = new Menu(true, '>', 0, 22, 100, defOver, defBack, 'itemBorder', 'itemText');
menu[8][1] = new Item('        Index', '/vb_dsp.html', '', defLength, 0, 0);
menu[8][2] = new Item('      Drivers', '/vb_drv.html', '', defLength, 0, 0); 
menu[8][3] = new Item('    Telephony', '/Subs/vb_dsp_tf.html', '', defLength, 0, 0);
menu[8][4] = new Item(' Conferencing', '/Subs/vb_dsp_conf.html', '', defLength, 0, 0);
menu[8][5] = new Item('       G3 FAX', '/Subs/vb_dsp_fax.html', '', defLength, 0, 0);
menu[8][6] = new Item('   V.90 Modem', '/Subs/vb_dsp_mod.html', '', defLength, 0, 0);
menu[8][7] = new Item('         HDLC', '/Subs/vb_dsp_hdlc.html', '', defLength, 0, 0);
menu[8][8] = new Item('   Monitoring', '/Subs/vb_dsp_mon.html', '', defLength, 0, 0);
menu[8][9] = new Item('         VoIP', '/Subs/vb_dsp_voip.html', '', defLength, 0, 0);
menu[8][10] = new Item('  DSP Dev Kit', '/PDFs/S-1033.pdf', '', defLength, 0, 0);

// APPS Software menu
menu[9] = new Array();
menu[9][0] = new Menu(true, '>', 0, 22, 100, defOver, defBack, 'itemBorder', 'itemText');
menu[9][1] = new Item('        Index', '/vb_mp.html', '', defLength, 0, 0);

// OS Driver menu
menu[10] = new Array();
menu[10][0] = new Menu(true, '>', 0, 22, 100, defOver, defBack, 'itemBorder', 'itemText');
menu[10][1] = new Item('        Index', '/vb_drv.html', '', defLength, 0, 0);

// Support menu
menu[13] = new Array();
menu[13][0] = new Menu(true, '>', 0, 22, 100, defOver, defBack, 'itemBorder', 'itemText');
menu[13][1] = new Item('        Index', '/vb_supp.html', '', defLength, 0, 0);

// *** OPTIONAL CODE FROM HERE DOWN ***

// These two lines handle the window resize bug in NS4. See <body onResize="...">.
// I recommend you leave this here as otherwise when you resize NS4's width menus are hidden.

var popOldWidth = window.innerWidth;
nsResizeHandler = new Function('if (popOldWidth != window.innerWidth) location.reload()');


// This is a quick snippet that captures all clicks on the document and hides the menus
// every time you click. Use if you want.

if (isNS4) document.captureEvents(Event.CLICK);
document.onclick = clickHandle;

function clickHandle(evt)
{
 if (isNS4) document.routeEvent(evt);
 hideAllBut(0);
}


// This is just the moving command for the example.

function moveRoot()
{
 with(menu[0][0].ref) left = ((parseInt(left) < 100) ? 100 : 5);
}
//  End -->