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;
// 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;
ref.top = y;
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).
//CHANGE COLOR OF MENU MOUSE OVER HERE  
var defOver = '#000044', defBack = '#000066';












// Default 'length' of menu items - item height if menu is vertical, width if horizontal.
var defLength = 22;


// Menu 0 is the special, 'root' menu from which everything else arises.
menu[0] = new Array();


// A non-vertical menu
// *** MOVE ROOT MENU AROUND HERE ***  it's positioned at (10, 55) and is 17px high now.
menu[0][0] = new Menu(false, '', 10, 55, 17, '#000066', '#000066', '', 'itemText');

menu[0][1] = new Item('  Home', 'index.html', '', 50, 5, 0);
menu[0][2] = new Item('  Department', '#', '', 70, 19, 1);
menu[0][3] = new Item('  Facilities', '#', '', 70, 10, 2);
// An example of a link with a target frame/window as well...
menu[0][4] = new Item('  Courses', '#', '', 70, 10, 3);
menu[0][5] = new Item('  Resources', '#', '', 70,10,4);
menu[0][6] = new Item('  Math/CS Society', '#', '', 96,10,8);
menu[0][7] = new Item('  Co-op', '#', '', 47,10,7);
menu[0][8] = new Item('  News Links', 'newslinks.html', '', 75, 5, 0);
menu[0][9] = new Item('  Research', '#', '', 75, 5, 10);
menu[0][10] = new Item('  Grad Studies', 'masters/index.html', '', 80, 5, 0);



// DEPARTMENT.
menu[1] = new Array();
menu[1][0] = new Menu(true, '>', 0, 22, 120, defOver, defBack, 'itemBorder', 'itemText');
menu[1][1] = new Item('About us', 'department.html', '', defLength, 0, 0);
menu[1][2] = new Item('Faculty', 'Faculty_Staff.html', '', defLength, 0, 0);
menu[1][3] = new Item('Employment', '#', '', defLength, 0, 12);
menu[1][4] = new Item('Class Photo', 'class_photo.html', '', defLength, 0, 0);
menu[1][5] = new Item('Senior Seminars', 'seminars.html', '', defLength, 0, 0);
menu[1][6] = new Item('James Chair', 'jameschair.html', '', defLength, 0, 0);
menu[1][7] = new Item('Meeting Info', 'Department_meetings/index.htm', '', defLength, 0, 0);




// Facilities menu
menu[2] = new Array();
menu[2][0] = new Menu(true, '<', 0, 22, 120, defOver, defBack, 'itemBorder', 'itemText');
menu[2][1] = new Item('Sun Lab', 'lab.html', '', defLength, 0, 0);
menu[2][2] = new Item('Learning Center', 'learning.html', '', defLength, 0, 0);




// Courses menu
menu[3] = new Array();
menu[3][0] = new Menu(true, '>', 0, 22, 150, defOver, defBack, 'itemBorder', 'itemText');
menu[3][1] = new Item('Math/Stat', '#', '', defLength, 0, 5);
menu[3][2] = new Item('Computer Science', '#', '', defLength, 0, 6);
menu[3][3] = new Item('Topics Courses', 'topics.html', '', defLength, 0, 0);
menu[3][4] = new Item('Graduation Reqs', '#', '', defLength, 0, 9);
menu[3][5] = new Item('Course Homepages', '#', '', defLength, 0, 11);




// RESOURCES menu
menu[4] = new Array();
menu[4][0] = new Menu(true, '<', 0, 22, 120, defOver, defBack, 'itemBorder', 'itemText');
menu[4][1] = new Item('The Math Book', 'mathbook/mathbook.html', '', defLength, 0, 0);
menu[4][2] = new Item('The CS Book', 'csbook/csbook.html', '', defLength, 0, 0);
menu[4][3] = new Item('Math-Net', 'math-net/index.html', '', defLength, 0, 0);
menu[4][4] = new Item('Math Tutorials', 'Math_Tutorials.html', '', defLength, 0, 0);
menu[4][5] = new Item('MSCS Tutors', 'tutors.html', '', defLength, 0, 0);


// Courses - MATH/stat sub menu
menu[5] = new Array();
menu[5][0] = new Menu(true, '<', 150, 0, 120, defOver, defBack, 'itemBorder', 'itemText');
menu[5][1] = new Item('Degree Overview', 'MathOverview.html', '', defLength, 0, 0);
menu[5][2] = new Item('Math Timetable', 'https://mesamis.stfx.ca/reports/Timetable_List.asp?pdept=MATH&pterm=201010', '', defLength, 0, 0);
menu[5][3] = new Item('Stat Timetable', 'https://mesamis.stfx.ca/reports/Timetable_List.asp?pdept=STAT&pterm=201010', '', defLength, 0, 0);
menu[5][4] = new Item('Course Outlines', 'MathCourses.html', '', defLength, 0, 0);
menu[5][5] = new Item('Research Papers', 'THESIS/thesistitles.htm', '', defLength, 0, 0);



// Courses - CS sub menu
menu[6] = new Array();
menu[6][0] = new Menu(true, '<', 150, 0, 120, defOver, defBack, 'itemBorder', 'itemText');
menu[6][1] = new Item('Degree Overview', 'CsOverview.html', '', defLength, 0, 0);
menu[6][2] = new Item('Course Timetable', 'https://mesamis.stfx.ca/reports/Timetable_List.asp?pdept=CSCI&pterm=201010', '', defLength, 0, 0);
menu[6][3] = new Item('Course Outlines', 'CsCourses.html', '', defLength, 0, 0);
menu[6][4] = new Item('Research Papers', 'THESIS/thesistitles.htm', '', defLength, 0, 0);

// Co-op menu
menu[7] = new Array();
menu[7][0] = new Menu(true, '>', 0, 22, 145, defOver, defBack, 'itemBorder', 'itemText');
menu[7][1] = new Item('Schwartz School Program', 'http://www.mystfx.ca/academic/co-op/', '', defLength, 0, 0);
menu[7][2] = new Item('Industrial Internship', 'internship.html', '', defLength, 0, 0);



// Society menu
menu[8] = new Array();
menu[8][0] = new Menu(true, '>', 0, 22, 120, defOver, defBack, 'itemBorder', 'itemText');
menu[8][1] = new Item('Math/CS Society', 'http://www.mystfx.ca/people/mathcs_soc', '', defLength, 0, 0);
menu[8][2] = new Item('Student Trips', 'StuTrips.html', '', defLength, 0, 0);
menu[8][3] = new Item('Past Trips', 'StuTripsOld.html', '', defLength, 0, 0);

// Graduation Req's Sub menu
menu[9] = new Array();
menu[9][0] = new Menu(true, '<', 150, 0, 150, defOver, defBack, 'itemBorder', 'itemText');
menu[9][1] = new Item('Math/Stat Requirements', 'department_info.htm', '', defLength, 0, 0);
menu[9][2] = new Item('Comp Sci Requirements', 'department_info.htm', '', defLength, 0, 0);

// Research Sub menu
menu[10] = new Array();
menu[10][0] = new Menu(true, '<', 0, 22, 200, defOver, defBack, 'itemBorder', 'itemText');
menu[10][1] = new Item('Logic and Computation Group', 'http://logic.stfx.ca', '', defLength, 0, 0);


// coursepages Sub menu
menu[11] = new Array();
menu[11][0] = new Menu(true, '<', 150, 0, 300, defOver, defBack, 'itemBorder', 'itemText');
menu[11][1] = new Item('Math 100 - Mathematical Concepts', 'http://www.mystfx.ca/academic/mathcs/courses/math100', '', defLength, 0, 0);
menu[11][2] = new Item('Math 111/112 - Calculus I/II', 'http://www.mystfx.ca/academic/mathcs/courses/calculus', '', defLength, 0, 0);
menu[11][3] = new Item('Math 205 - Business Mathematics', 'http://www.mystfx.ca/academic/mathcs/courses/math205', '', defLength, 0, 0);

menu[11][4] = new Item('Math 221 - Differential Equations for Engineers', 'http://www.mystfx.ca/academic/mathcs/courses/math221', '', defLength, 0, 0);



menu[11][5] = new Item('Math 222 - Calculus III for Engineers', 'http://www.mystfx.ca/academic/mathcs/courses/math222', '', defLength, 0, 0);

menu[11][6] = new Item('Math 223 - Linear Algebra for Engineers', 'http://www.mystfx.ca/academic/mathcs/courses/math223', '', defLength, 0, 0);
menu[11][7] = new Item('Math 253 - Matrix Algebra', 'http://www.mystfx.ca/academic/mathcs/courses/math253', '', defLength, 0, 0);

menu[11][8] = new Item('Math 254 - Linear Algebra', 'http://www.mystfx.ca/academic/mathcs/courses/math254', '', defLength, 0, 0);



menu[11][9] = new Item('Math 287 - Natural Resoource Modelling', 'http://www.mystfx.ca/academic/mathcs/courses/math287', '', defLength, 0, 0);
menu[11][10] = new Item('Math 361 - Advanced Vector Calculus', 'http://www.mystfx.ca/academic/mathcs/courses/math361', '', defLength, 0, 0);
menu[11][11] = new Item('Math 367 - Differential Equations', 'http://www.mystfx.ca/academic/mathcs/courses/math367', '', defLength, 0, 0);
menu[11][12] = new Item('Math 384 - Numerical Methods', 'http://www.mystfx.ca/academic/mathcs/courses/math384', '', defLength, 0, 0);


menu[11][13] = new Item('Math 387 - Mathematical Modeling', 'http://www.mystfx.ca/academic/mathcs/courses/math387', '', defLength, 0, 0);
menu[11][14] = new Item('Math 471 - Topics in Mathematics', 'http://www.mystfx.ca/academic/mathcs/courses/math471', '', defLength, 0, 0);
menu[11][15] = new Item('MSCS 491 - Senior Seminar', 'http://www.mystfx.ca/academic/mathcs/courses/MSCS491', '', defLength, 0, 0);
menu[11][16] = new Item('MSCS 493 - Senior Thesis', 'http://www.mystfx.ca/academic/mathcs/courses/MSCS493', '', defLength, 0, 0);


menu[11][17] = new Item('Stat 201 - Elementary Statistics', 'http://www.mystfx.ca/academic/mathcs/courses/s201', '', defLength, 0, 0);



menu[11][18] = new Item('Stat 224 - Probability and Statistics for Engineers', 'http://www.mystfx.ca/academic/mathcs/courses/Stat224', '', defLength, 0, 0);



menu[11][19] = new Item('Stat 231 - Statistics for Science Students', 'http://www.mystfx.ca/academic/mathcs/courses/stat231', '', defLength, 0, 0);


menu[11][20] = new Item('Stat 331 - Statistical Methods', 'http://www.mystfx.ca/academic/mathcs/courses/Stat331', '', defLength, 0, 0);

menu[11][21] = new Item('Stat 333 - Intro to Probability Theory', 'http://www.mystfx.ca/academic/mathcs/courses/Stat333', '', defLength, 0, 0);



menu[11][22] = new Item('Stat 334 - Mathematical Statistics', 'http://www.mystfx.ca/academic/mathcs/courses/Stat334', '', defLength, 0, 0);


menu[11][23] = new Item('Stat 435 - Regression Analysis', 'http://www.mystfx.ca/academic/mathcs/courses/Stat435', '', defLength, 0, 0);





// Employment Sub menu
menu[12] = new Array();
menu[12][0] = new Menu(true, '<', 120, 0, 250, defOver, defBack, 'itemBorder', 'itemText');
menu[12][1] = new Item('Faculty Opportunities', 'employment_july09.html', '', defLength, 0, 0);
menu[12][2] = new Item('Student Summer Research Opportunities', 'student_info.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);
}