<!-- 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; 

var isIE4;

var isNS4;


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;


// 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() {

  init_menu_array();

  isDOM = (document.getElementById ? true : false); 

  isIE4 = ((document.all && !isDOM) ? true : false);

  isNS4 = (document.layers ? true : false);

  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; ';

	str += '<div id="' + itemID + '" style="position: absolute; left: ' + itemX + 'px; top: ' + itemY + 'px; width: ' + w + 'px; height: ' + h + 'px; 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 : 2) + '"><tr><td align="left" height="' + (h - 7) + '">' + '<a class="' + textClass + '" href="' + href + '"' + (frame ? ' target="' + frame + '">' : '>') + text + '</a></td>';

      str += '<table width="' + (w - 8) + '" border="0" cellspacing="0" cellpadding="' + (!isNS4 && borderClass ? 3 : 2) + '"><tr><td align="left" height="' + h + '">' + '<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');

      var curr_x = menu[currMenu][0].x, curr_y = menu[currMenu][0].y;

      document.getElementsByTagName('body').item(0).appendChild(newDiv);

      newDiv.innerHTML = str;

      ref = newDiv.style;

      ref.position = 'absolute';

      ref.visibility = 'hidden';

      if (menu[currMenu][0].parentMenu) {

	curr_x += menu[parentMenu][0].x + menu[parentMenu][0].width;

	curr_y += menu[parentMenu][0].y + ((menu[currMenu][0].parentItem-1) * (menu[parentMenu][parentItem].length+menu[parentMenu][parentItem].spacing));

	menu[currMenu][0].x = curr_x;

	menu[currMenu][0].y = curr_y;

      }

      ref.left = curr_x + 'px';

      ref.top = curr_y + 'px';

    }


    // 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;

    ref.top = y;

    //ref.visibility = 'visible';

    ref.visibility = 'hidden';

  }

}


// 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 function rewrites the menus if the browser window is resized. this is necessary because

//the menu is centered, and the position of the submenus are based on browser window width.

//the function should be called in the onResize attribute of the body tag.


function win_resized() {

 var new_middle;


  if (navigator.userAgent.indexOf('MSIE') != -1) {

    new_middle = document.body.clientWidth/2;

  }

  else {

    new_middle = window.innerWidth/2;

  }


  if (win_middle != new_middle) {

    hideAllBut(0);

    win_middle = new_middle;

    writeMenus();

  }

}


// 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);

}


//dropdown rollover background and background

var defOver = '#fee683', defBack = '#ffd83b';

var defLength = 22;


var menu = new Array();

var win_middle;


// this is called from the writeMenus() function above. its purpose is to re-init the

// menu array whenever the browser window is resized. see also win_resized() function.

function init_menu_array() {

var width;

if (navigator.userAgent.indexOf('MSIE') != -1) {

  width = document.body.clientWidth;

}

else {

  width = window.innerWidth;

}

win_middle = width/2;


menu[0] = new Array();

menu[0][0] = new Menu(true, '', 0, 0, 30, defOver, defBack, '', 'itemText');

menu[0][1] = new Item('Services &amp; Solutions',     'strategy-consulting.html', '', defLength, 0, 1);

menu[0][2] = new Item('About Us',      'the-psi-difference.html', '', defLength, 0, 2);

menu[0][3] = new Item('Careers',      'corporate-culture.html', '', defLength, 0, 3);


menu[1] = new Array();

menu[1][0] = new Menu(true, '>', win_middle-235, 173, 165, defOver, defBack, 'itemBorder', 'itemText');

menu[1][1] = new Item('Strategy Consulting', 'strategy-consulting.html', '', defLength, 0, 0);

menu[1][2] = new Item('Insight Initiatives', 'insight-initiatives.html', '', defLength, 0, 0);

menu[1][3] = new Item('Market Monitoring', 'market-monitoring.html', '', defLength, 0, 0);

menu[1][4] = new Item('Thought Leaders', 'thought-leaders.html', '', defLength, 0, 0);

menu[1][5] = new Item('Contact Us', 'contactus.html', '', defLength, 0, 0);


menu[2] = new Array();

menu[2][0] = new Menu(true, '>', win_middle-77, 173, 155, defOver, defBack, 'itemBorder', 'itemText');

menu[2][1] = new Item('The PSI Difference', 'the-psi-difference.html', '', defLength, 0, 0);

menu[2][2] = new Item('Our Founder', 'our-founder.html', '', defLength, 0, 0);

menu[2][3] = new Item('Our Team', 'our-team.html', '', defLength, 0, 0);

menu[2][4] = new Item('Contact Us', 'contactus.html', '', defLength, 0, 0);


menu[3] = new Array();

menu[3][0] = new Menu(true, '>', win_middle+30, 173, 155, defOver, defBack, 'itemBorder', 'itemText');

menu[3][1] = new Item('Corporate Culture', 'corporate-culture.html', '', defLength, 0, 0);

menu[3][2] = new Item('Corporate Values', 'corporate-values.html', '', defLength, 0, 0);

menu[3][3] = new Item('PLDP Program', 'pldp-program.html', '', defLength, 0, 0);

menu[3][4] = new Item('Current Positions', 'current-positions.html', '', defLength, 0, 0);


}


//  End -->