// Written by: Debbie Whitcomb
// Last Updated: April 14, 2004

// $Author: Northrop Grumman Corp. $ 
// $Revision:  $ 

// MENU MOUSE OVER 
function menuOver(itemName) {
  clearTimeout(timeOn)
  menuActive = 1
}

// MENU MOUSE OUT 
function menuOut(itemName) {
  if(document.layers) {
    menuActive = 0
 	  timeOn = setTimeout("hideAllMenus()", 400)
  }
}

// SET BACKGROUND COLOR 
function getImage(name) {
  if (document.layers) {
    return findImage(name, document);
  }
  return null;
}

function findImage(name, doc) {
  var i, img;
  for (i = 0; i < doc.images.length; i++)
    if (doc.images[i].name == name)
      return doc.images[i];
  for (i = 0; i < doc.layers.length; i++)
    if ((img = findImage(name, doc.layers[i].document)) != null) {
      img.container = doc.layers[i];
      return img;
    }
  return null;
}

function getImagePageLeft(img) {
  var x, obj;
  if (document.layers) {
    if (img.container != null)
      return img.container.pageX + img.x;
    else
      return img.x;
  }
  return -1;
}

function getImagePageTop(img) {
  var y, obj;
  if (document.layers) {
    if (img.container != null)
      return img.container.pageY + img.y;
    else
      return img.y;
  }
  return -1;
}

//document.write('<style> .menu{position: absolute;}</style>');
var timeOn = null;
numMenus = 7;
document.onmouseover = hideAllMenus;
document.onclick = hideAllMenus;
window.onerror = null;

// getStyleObject
function getStyleObject(objectId) {
  // cross-browser function to get an object's style object given its id
  if(document.getElementById && document.getElementById(objectId)) {
  // W3C DOM
    return document.getElementById(objectId).style;
  } else if (document.all && document.all(objectId)) {
  // MSIE 4 DOM
    return document.all(objectId).style;
  } else if (document.layers && document.layers[objectId]) {
  // NN 4 DOM.. note: this won't find nested layers
    return document.layers[objectId];
  } else {
    return false;
  }
}

// changeObjectVisibility
function changeObjectVisibility(objectId, newVisibility) {
  // get a reference to the cross-browser style object and make sure the object exists
  var styleObject = getStyleObject(objectId);
  if(styleObject) {
    styleObject.visibility = newVisibility;
    return true;
  } else {
    //we couldn't find the object, so we can't change its visibility
    return false;
  }
}

function showMenu(menuNumber, eventObj, labelID) {
  hideAllMenus();
  if(document.layers) {
    img = getImage("img" + menuNumber);
 	  x = getImagePageLeft(img);
 	  y = getImagePageTop(img);
// 	  menuTop = y + 10; // LAYER TOP POSITION
 	  menuTop = y; // LAYER TOP POSITION
    eval('document.layers["menu'+menuNumber+'"].top="'+menuTop+'"');
    eval('document.layers["menu'+menuNumber+'"].left="'+x+'"');
  }
  eventObj.cancelBubble = true;
  var menuId = 'menu' + menuNumber;
  if(changeObjectVisibility(menuId, 'visible')) {
    return true;
  } else {
    return false;
  }
}

function hideAllMenus() {
  for(counter = 1; counter <= numMenus; counter++) {
    changeObjectVisibility('menu' + counter, 'hidden');
  }
}

// moveObject
function moveObject(objectId, newXCoordinate, newYCoordinate) {
  // get a reference to the cross-browser style object and make sure the object exists
  var styleObject = getStyleObject(objectId);
  if(styleObject) {
    styleObject.left = newXCoordinate;
    styleObject.top = newYCoordinate;
    return true;
  } else {
	// we couldn't find the object, so we can't very well move it
    return false;
  }
}

// ***********************
// hacks and workarounds *
// ***********************

// initialize hacks whenever the page loads
window.onload = initializeHacks;

// setup an event handler to hide popups for generic clicks on the document
function initializeHacks() {
  // this ugly little hack resizes a blank div to make sure you can click
  // anywhere in the window for Mac MSIE 5
  if ((navigator.appVersion.indexOf('MSIE 5') != -1) 
    && (navigator.platform.indexOf('Mac') != -1)
    && getStyleObject('blankDiv')) {
    window.onresize = explorerMacResizeFix;
  }
  resizeBlankDiv();
  // this next function creates a placeholder object for older browsers
  createFakeEventObj();
}

// createFakeEventObj
function createFakeEventObj() {
  // create a fake event object for older browsers to avoid errors in function call
  // when we need to pass the event object to functions
  if (!window.event) {
    window.event = false;
  }
}

function resizeBlankDiv() {
  // resize blank placeholder div so IE 5 on mac will get all clicks in window
  if ((navigator.appVersion.indexOf('MSIE 5') != -1) 
    && (navigator.platform.indexOf('Mac') != -1)
    && getStyleObject('blankDiv')) {
    getStyleObject('blankDiv').width = document.body.clientWidth - 20;
    getStyleObject('blankDiv').height = document.body.clientHeight - 20;
  }
}

function explorerMacResizeFix () {
  location.reload(false);
}

function mClk(src){ 
  if(event.srcElement.tagName=='TD')
    src.children.tags('A')[0].click();
}