/*
 * jQuery JavaScript Library v1.3.2
 * http://jquery.com/
 *
 * Copyright (c) 2009 John Resig
 * Dual licensed under the MIT and GPL licenses.
 * http://docs.jquery.com/License
 *
 * Date: 2009-02-19 17:34:21 -0500 (Thu, 19 Feb 2009)
 * Revision: 6246
 */
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J=this[0],G=J.offsetParent,F=J,O=J.ownerDocument,M,H=O.documentElement,K=O.body,L=O.defaultView,E=L.getComputedStyle(J,null),N=J.offsetTop,I=J.offsetLeft;while((J=J.parentNode)&&J!==K&&J!==H){M=L.getComputedStyle(J,null);N-=J.scrollTop,I-=J.scrollLeft;if(J===G){N+=J.offsetTop,I+=J.offsetLeft;if(o.offset.doesNotAddBorder&&!(o.offset.doesAddBorderForTableAndCells&&/^t(able|d|h)$/i.test(J.tagName))){N+=parseInt(M.borderTopWidth,10)||0,I+=parseInt(M.borderLeftWidth,10)||0}F=G,G=J.offsetParent}if(o.offset.subtractsBorderForOverflowNotVisible&&M.overflow!=="visible"){N+=parseInt(M.borderTopWidth,10)||0,I+=parseInt(M.borderLeftWidth,10)||0}E=M}if(E.position==="relative"||E.position==="static"){N+=K.offsetTop,I+=K.offsetLeft}if(E.position==="fixed"){N+=Math.max(H.scrollTop,K.scrollTop),I+=Math.max(H.scrollLeft,K.scrollLeft)}return{top:N,left:I}}}o.offset={initialize:function(){if(this.initialized){return}var L=document.body,F=document.createElement("div"),H,G,N,I,M,E,J=L.style.marginTop,K='<div style="position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;"><div></div></div><table style="position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;" cellpadding="0" cellspacing="0"><tr><td></td></tr></table>';M={position:"absolute",top:0,left:0,margin:0,border:0,width:"1px",height:"1px",visibility:"hidden"};for(E in M){F.style[E]=M[E]}F.innerHTML=K;L.insertBefore(F,L.firstChild);H=F.firstChild,G=H.firstChild,I=H.nextSibling.firstChild.firstChild;this.doesNotAddBorder=(G.offsetTop!==5);this.doesAddBorderForTableAndCells=(I.offsetTop===5);H.style.overflow="hidden",H.style.position="relative";this.subtractsBorderForOverflowNotVisible=(G.offsetTop===-5);L.style.marginTop="1px";this.doesNotIncludeMarginInBodyOffset=(L.offsetTop===0);L.style.marginTop=J;L.removeChild(F);this.initialized=true},bodyOffset:function(E){o.offset.initialized||o.offset.initialize();var G=E.offsetTop,F=E.offsetLeft;if(o.offset.doesNotIncludeMarginInBodyOffset){G+=parseInt(o.curCSS(E,"marginTop",true),10)||0,F+=parseInt(o.curCSS(E,"marginLeft",true),10)||0}return{top:G,left:F}}};o.fn.extend({position:function(){var I=0,H=0,F;if(this[0]){var G=this.offsetParent(),J=this.offset(),E=/^body|html$/i.test(G[0].tagName)?{top:0,left:0}:G.offset();J.top-=j(this,"marginTop");J.left-=j(this,"marginLeft");E.top+=j(G,"borderTopWidth");E.left+=j(G,"borderLeftWidth");F={top:J.top-E.top,left:J.left-E.left}}return F},offsetParent:function(){var E=this[0].offsetParent||document.body;while(E&&(!/^body|html$/i.test(E.tagName)&&o.css(E,"position")=="static")){E=E.offsetParent}return o(E)}});o.each(["Left","Top"],function(F,E){var G="scroll"+E;o.fn[G]=function(H){if(!this[0]){return null}return H!==g?this.each(function(){this==l||this==document?l.scrollTo(!F?H:o(l).scrollLeft(),F?H:o(l).scrollTop()):this[G]=H}):this[0]==l||this[0]==document?self[F?"pageYOffset":"pageXOffset"]||o.boxModel&&document.documentElement[G]||document.body[G]:this[0][G]}});o.each(["Height","Width"],function(I,G){var E=I?"Left":"Top",H=I?"Right":"Bottom",F=G.toLowerCase();o.fn["inner"+G]=function(){return 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var Drupal = Drupal || { 'settings': {}, 'behaviors': {}, 'themes': {}, 'locale': {} };

/**
 * Set the variable that indicates if JavaScript behaviors should be applied
 */
Drupal.jsEnabled = document.getElementsByTagName && document.createElement && document.createTextNode && document.documentElement && document.getElementById;

/**
 * Attach all registered behaviors to a page element.
 *
 * Behaviors are event-triggered actions that attach to page elements, enhancing
 * default non-Javascript UIs. Behaviors are registered in the Drupal.behaviors
 * object as follows:
 * @code
 *    Drupal.behaviors.behaviorName = function () {
 *      ...
 *    };
 * @endcode
 *
 * Drupal.attachBehaviors is added below to the jQuery ready event and so
 * runs on initial page load. Developers implementing AHAH/AJAX in their
 * solutions should also call this function after new page content has been
 * loaded, feeding in an element to be processed, in order to attach all
 * behaviors to the new content.
 *
 * Behaviors should use a class in the form behaviorName-processed to ensure
 * the behavior is attached only once to a given element. (Doing so enables
 * the reprocessing of given elements, which may be needed on occasion despite
 * the ability to limit behavior attachment to a particular element.)
 *
 * @param context
 *   An element to attach behaviors to. If none is given, the document element
 *   is used.
 */
Drupal.attachBehaviors = function(context) {
  context = context || document;
  if (Drupal.jsEnabled) {
    // Execute all of them.
    jQuery.each(Drupal.behaviors, function() {
      this(context);
    });
  }
};

/**
 * Encode special characters in a plain-text string for display as HTML.
 */
Drupal.checkPlain = function(str) {
  str = String(str);
  var replace = { '&': '&amp;', '"': '&quot;', '<': '&lt;', '>': '&gt;' };
  for (var character in replace) {
    var regex = new RegExp(character, 'g');
    str = str.replace(regex, replace[character]);
  }
  return str;
};

/**
 * Translate strings to the page language or a given language.
 *
 * See the documentation of the server-side t() function for further details.
 *
 * @param str
 *   A string containing the English string to translate.
 * @param args
 *   An object of replacements pairs to make after translation. Incidences
 *   of any key in this array are replaced with the corresponding value.
 *   Based on the first character of the key, the value is escaped and/or themed:
 *    - !variable: inserted as is
 *    - @variable: escape plain text to HTML (Drupal.checkPlain)
 *    - %variable: escape text and theme as a placeholder for user-submitted
 *      content (checkPlain + Drupal.theme('placeholder'))
 * @return
 *   The translated string.
 */
Drupal.t = function(str, args) {
  // Fetch the localized version of the string.
  if (Drupal.locale.strings && Drupal.locale.strings[str]) {
    str = Drupal.locale.strings[str];
  }

  if (args) {
    // Transform arguments before inserting them
    for (var key in args) {
      switch (key.charAt(0)) {
        // Escaped only
        case '@':
          args[key] = Drupal.checkPlain(args[key]);
        break;
        // Pass-through
        case '!':
          break;
        // Escaped and placeholder
        case '%':
        default:
          args[key] = Drupal.theme('placeholder', args[key]);
          break;
      }
      str = str.replace(key, args[key]);
    }
  }
  return str;
};

/**
 * Format a string containing a count of items.
 *
 * This function ensures that the string is pluralized correctly. Since Drupal.t() is
 * called by this function, make sure not to pass already-localized strings to it.
 *
 * See the documentation of the server-side format_plural() function for further details.
 *
 * @param count
 *   The item count to display.
 * @param singular
 *   The string for the singular case. Please make sure it is clear this is
 *   singular, to ease translation (e.g. use "1 new comment" instead of "1 new").
 *   Do not use @count in the singular string.
 * @param plural
 *   The string for the plural case. Please make sure it is clear this is plural,
 *   to ease translation. Use @count in place of the item count, as in "@count
 *   new comments".
 * @param args
 *   An object of replacements pairs to make after translation. Incidences
 *   of any key in this array are replaced with the corresponding value.
 *   Based on the first character of the key, the value is escaped and/or themed:
 *    - !variable: inserted as is
 *    - @variable: escape plain text to HTML (Drupal.checkPlain)
 *    - %variable: escape text and theme as a placeholder for user-submitted
 *      content (checkPlain + Drupal.theme('placeholder'))
 *   Note that you do not need to include @count in this array.
 *   This replacement is done automatically for the plural case.
 * @return
 *   A translated string.
 */
Drupal.formatPlural = function(count, singular, plural, args) {
  var args = args || {};
  args['@count'] = count;
  // Determine the index of the plural form.
  var index = Drupal.locale.pluralFormula ? Drupal.locale.pluralFormula(args['@count']) : ((args['@count'] == 1) ? 0 : 1);

  if (index == 0) {
    return Drupal.t(singular, args);
  }
  else if (index == 1) {
    return Drupal.t(plural, args);
  }
  else {
    args['@count['+ index +']'] = args['@count'];
    delete args['@count'];
    return Drupal.t(plural.replace('@count', '@count['+ index +']'));
  }
};

/**
 * Generate the themed representation of a Drupal object.
 *
 * All requests for themed output must go through this function. It examines
 * the request and routes it to the appropriate theme function. If the current
 * theme does not provide an override function, the generic theme function is
 * called.
 *
 * For example, to retrieve the HTML that is output by theme_placeholder(text),
 * call Drupal.theme('placeholder', text).
 *
 * @param func
 *   The name of the theme function to call.
 * @param ...
 *   Additional arguments to pass along to the theme function.
 * @return
 *   Any data the theme function returns. This could be a plain HTML string,
 *   but also a complex object.
 */
Drupal.theme = function(func) {
  for (var i = 1, args = []; i < arguments.length; i++) {
    args.push(arguments[i]);
  }

  return (Drupal.theme[func] || Drupal.theme.prototype[func]).apply(this, args);
};

/**
 * Parse a JSON response.
 *
 * The result is either the JSON object, or an object with 'status' 0 and 'data' an error message.
 */
Drupal.parseJson = function (data) {
  if ((data.substring(0, 1) != '{') && (data.substring(0, 1) != '[')) {
    return { status: 0, data: data.length ? data : Drupal.t('Unspecified error') };
  }
  return eval('(' + data + ');');
};

/**
 * Freeze the current body height (as minimum height). Used to prevent
 * unnecessary upwards scrolling when doing DOM manipulations.
 */
Drupal.freezeHeight = function () {
  Drupal.unfreezeHeight();
  var div = document.createElement('div');
  $(div).css({
    position: 'absolute',
    top: '0px',
    left: '0px',
    width: '1px',
    height: $('body').css('height')
  }).attr('id', 'freeze-height');
  $('body').append(div);
};

/**
 * Unfreeze the body height
 */
Drupal.unfreezeHeight = function () {
  $('#freeze-height').remove();
};

/**
 * Wrapper around encodeURIComponent() which avoids Apache quirks (equivalent of
 * drupal_urlencode() in PHP). This function should only be used on paths, not
 * on query string arguments.
 */
Drupal.encodeURIComponent = function (item, uri) {
  uri = uri || location.href;
  item = encodeURIComponent(item).replace(/%2F/g, '/');
  return (uri.indexOf('?q=') != -1) ? item : item.replace(/%26/g, '%2526').replace(/%23/g, '%2523').replace(/\/\//g, '/%252F');
};

/**
 * Get the text selection in a textarea.
 */
Drupal.getSelection = function (element) {
  if (typeof(element.selectionStart) != 'number' && document.selection) {
    // The current selection
    var range1 = document.selection.createRange();
    var range2 = range1.duplicate();
    // Select all text.
    range2.moveToElementText(element);
    // Now move 'dummy' end point to end point of original range.
    range2.setEndPoint('EndToEnd', range1);
    // Now we can calculate start and end points.
    var start = range2.text.length - range1.text.length;
    var end = start + range1.text.length;
    return { 'start': start, 'end': end };
  }
  return { 'start': element.selectionStart, 'end': element.selectionEnd };
};

/**
 * Build an error message from ahah response.
 */
Drupal.ahahError = function(xmlhttp, uri) {
  if (xmlhttp.status == 200) {
    if (jQuery.trim($(xmlhttp.responseText).text())) {
      var message = Drupal.t("An error occurred. \n@uri\n@text", {'@uri': uri, '@text': xmlhttp.responseText });
    }
    else {
      var message = Drupal.t("An error occurred. \n@uri\n(no information available).", {'@uri': uri, '@text': xmlhttp.responseText });
    }
  }
  else {
    var message = Drupal.t("An HTTP error @status occurred. \n@uri", {'@uri': uri, '@status': xmlhttp.status });
  }
  return message;
}

// Global Killswitch on the <html> element
if (Drupal.jsEnabled) {
  // Global Killswitch on the <html> element
  $(document.documentElement).addClass('js');
  // 'js enabled' cookie
  document.cookie = 'has_js=1; path=/';
  // Attach all behaviors.
  $(document).ready(function() {
    Drupal.attachBehaviors(this);
  });
}

/**
 * The default themes.
 */
Drupal.theme.prototype = {

  /**
   * Formats text for emphasized display in a placeholder inside a sentence.
   *
   * @param str
   *   The text to format (plain-text).
   * @return
   *   The formatted text (html).
   */
  placeholder: function(str) {
    return '<em>' + Drupal.checkPlain(str) + '</em>';
  }
};
;
function initHWDMSCalendar() {
  // init the Google data JS client library with an error handler
  google.gdata.client.init(handleGDError);
  loadCalendar('http://www.google.com/calendar/feeds/enquiries@hwdms.org/public/full',
	listEvents, 5);
}

function initTutorsCalendar() {
  // init the Google data JS client library with an error handler
  google.gdata.client.init(handleGDError);
  loadCalendar('http://www.google.com/calendar/feeds/640tuabelpi5r4q6mgq0s5isfg%40group.calendar.google.com/public/full',
	listEventsTutorsStyle, 5);
}


/**
 * Adds a leading zero to a single-digit number.  Used for displaying dates.
 */
function padNumber(num) {
  if (num <= 9) {
    return "0" + num;
  }
  return num;
}

/**
 * Determines the full calendarUrl based upon the calendarAddress
 * argument and calls loadCalendar with the calendarUrl value.
 *
 * @param {string} calendarAddress is the email-style address for the calendar
 */ 
function loadCalendarByAddress(calendarAddress) {
  var calendarUrl = 'http://www.google.com/calendar/feeds/' +
                    calendarAddress + 
                    '/public/full';
  loadCalendar(calendarUrl);
}

/**
 * Uses Google data JS client library to retrieve a calendar feed from the specified
 * URL.  The feed is controlled by several query parameters and a callback 
 * function is called to process the feed results.
 *
 * @param {string} calendarUrl is the URL for a public calendar feed
 */  
function loadCalendar(calendarUrl, whatToDoWhenFinished, howManyEvents) {
  var service = new 
      google.gdata.calendar.CalendarService('gdata-js-client-samples-simple');
  var query = new google.gdata.calendar.CalendarEventQuery(calendarUrl);
  query.setOrderBy('starttime');
  query.setSortOrder('ascending');
  query.setFutureEvents(true);
  query.setSingleEvents(true);
  query.setMaxResults(howManyEvents);

  service.getEventsFeed(query, whatToDoWhenFinished, handleGDError);
}

/**
 * Callback function for the Google data JS client library to call when an error
 * occurs during the retrieval of the feed.  Details available depend partly
 * on the web browser, but this shows a few basic examples. In the case of
 * a privileged environment using ClientLogin authentication, there may also
 * be an e.type attribute in some cases.
 *
 * @param {Error} e is an instance of an Error 
 */
function handleGDError(e) {
  document.getElementById('jsSourceFinal').setAttribute('style', 
      'display:none');
  if (e instanceof Error) {
    /* alert with the error line number, file and message */
    alert('Error at line ' + e.lineNumber +
          ' in ' + e.fileName + '\n' +
          'Message: ' + e.message);
    /* if available, output HTTP error code and status text */
    if (e.cause) {
      var status = e.cause.status;
      var statusText = e.cause.statusText;
      alert('Root cause: HTTP error ' + status + ' with status text of: ' + 
            statusText);
    }
  } else {
    alert(e.toString());
  }
}

/**
 * Callback function for the Google data JS client library to call with a feed 
 * of events retrieved.
 *
 * Creates an unordered list of events in a human-readable form.  This list of
 * events is added into a div called 'events'.  The title for the calendar is
 * placed in a div called 'calendarTitle'
 *
 * @param {json} feedRoot is the root of the feed, containing all entries 
 */ 
 
 var entries;
 
function listEvents(feedRoot) {

	var months = new Array(13);
	   months[0]  = "January";
	   months[1]  = "February";
	   months[2]  = "March";
	   months[3]  = "April";
	   months[4]  = "May";
	   months[5]  = "June";
	   months[6]  = "July";
	   months[7]  = "August";
	   months[8]  = "September";
	   months[9]  = "October";
	   months[10] = "November";
	   months[11] = "December";
	var dayName=new Array(7)
		dayName[0]="Sunday";
		dayName[1]="Monday";
		dayName[2]="Tuesday";
		dayName[3]="Wednesday";
		dayName[4]="Thursday";
		dayName[5]="Friday";
		dayName[6]="Saturday";

  entries = feedRoot.feed.getEntries();
  var eventDiv = document.getElementById('events');
  if (eventDiv.childNodes.length > 0) {
    eventDiv.removeChild(eventDiv.childNodes[0]);
  }	  
  /* create a new unordered list */
  var ul = document.createElement('div');
	ul.setAttribute("class", "hwdms-calendar");
	ul.setAttribute("className", "hwdms-calendar");
  /* set the calendarTitle div with the name of the calendar */
  //document.getElementById('calendarTitle').innerHTML = 
  //  "Calendar: " + feedRoot.feed.title.$t;
  /* loop through each event in the feed */
  var len = entries.length;
  for (var i = 0; i < len; i++) {
    var entry = entries[i];
    var title = entry.getTitle().getText();
    var startDateTime = null;
    var startJSDate = null;
		var endDateTime = null;
    var endJSDate = null;
    var times = entry.getTimes();
    if (times.length > 0) {
      startDateTime = times[0].getStartTime();
      startJSDate = startDateTime.getDate();
			if (times[0].getEndTime()) {
				endDateTime = times[0].getEndTime();
				endJSDate = endDateTime.getDate();
			}
    }
    var entryLinkHref = null;
    if (entry.getHtmlLink() != null) {
      entryLinkHref = entry.getHtmlLink().getHref();
    }
    var dateString = (dayName[startJSDate.getDay()].substr(0,3)) + " " + (startJSDate.getDate()) + " " + months[startJSDate.getMonth()].substr(0,3);
    var timeString = '';
		if (!startDateTime.isDateOnly()) {
      //timeString += startJSDate.getHours() + ":" + 
      //   padNumber(startJSDate.getMinutes());
			//if (endJSDate) {
			//	timeString += "-" + + endJSDate.getHours() + ":" + 
      //   padNumber(endJSDate.getMinutes());
			//}
			timeString += ', ';
			if (startJSDate.getHours() > 12) {
				timeString += (startJSDate.getHours() - 12) + ':' + padNumber(startJSDate.getMinutes()) + 'pm';
			} else {
				timeString += (startJSDate.getHours()) + ':' + padNumber(startJSDate.getMinutes()) + 'am';
			}

    }
		
    var dp = document.createElement('span');
		dp.setAttribute("class", "event-date");
		dp.setAttribute("className", "event-date");
		dp.appendChild(document.createTextNode(dateString));
		ul.appendChild(dp);
		
		if (timeString != '') {
			var tp = document.createElement('span');
			tp.setAttribute("class", "event-time");
			tp.setAttribute("className", "event-time");
			tp.appendChild(document.createTextNode(timeString));
			ul.appendChild(tp);
		}
		
		var dt = document.createElement('span');
		dt.setAttribute("class", "event-title");
		dt.setAttribute("className", "event-title");
    if (entryLinkHref != null && true == false) {
      entryLink = document.createElement('a');
      entryLink.setAttribute('href', entryLinkHref);
      entryLink.appendChild(document.createTextNode(title));
		} else {
			entryLink = document.createTextNode(title);
		}
		dt.appendChild(entryLink);
		ul.appendChild(dt);


		}
  eventDiv.appendChild(ul);
}

function listEventsTutorsStyle(feedRoot) {

	var months = new Array(13);
	   months[0]  = "January";
	   months[1]  = "February";
	   months[2]  = "March";
	   months[3]  = "April";
	   months[4]  = "May";
	   months[5]  = "June";
	   months[6]  = "July";
	   months[7]  = "August";
	   months[8]  = "September";
	   months[9]  = "October";
	   months[10] = "November";
	   months[11] = "December";
	var dayName=new Array(7)
		dayName[0]="Sunday";
		dayName[1]="Monday";
		dayName[2]="Tuesday";
		dayName[3]="Wednesday";
		dayName[4]="Thursday";
		dayName[5]="Friday";
		dayName[6]="Saturday";

  entries = feedRoot.feed.getEntries();
  var eventDiv = document.getElementById('events');
  //clear the eventDiv's contents and padding
  if (eventDiv.childNodes.length > 0) {
    eventDiv.removeChild(eventDiv.childNodes[0]);
  }
  
  /* create outer div */
  var ul = document.createElement('div');
	ul.setAttribute("class", "hwdms-calendar");
	ul.setAttribute("className", "hwdms-calendar");
	table = document.createElement('table');

  /* loop through each event in the feed */
  var len = entries.length;
  for (var i = 0; i < len; i++) {
	var entry = entries[i];
	var title = entry.getTitle().getText();
	var desc = entry.getContent().getText();
	if (desc == '') { desc = '\u00A0'; };
	var location = entry.getLocations()[0].getValueString();
	var startDateTime = null;
	var startJSDate = null;
	var endDateTime = null;
	var endJSDate = null;
	var times = entry.getTimes();
	if (times.length > 0) {
	  startDateTime = times[0].getStartTime();
	  startJSDate = startDateTime.getDate();
			if (times[0].getEndTime()) {
				endDateTime = times[0].getEndTime();
				endJSDate = endDateTime.getDate();
			}
	}
	var entryLinkHref = null;
	if (entry.getHtmlLink() != null) {
	  entryLinkHref = entry.getHtmlLink().getHref();
	}
	var dateString = startJSDate.getDate() + " " + months[startJSDate.getMonth()].substr(0,3);
	var timeString = '';
	if (!startDateTime.isDateOnly()) {
		timeString += (startJSDate.getHours()) + '.' + padNumber(startJSDate.getMinutes());
	}

	//create the HTML here
	var tdDate = document.createElement('td');
	tdDate.appendChild(document.createTextNode(dateString));
	var tdTitle = document.createElement('td');
	tdTitle.appendChild(document.createTextNode(title));
	var tdTime = document.createElement('td');
	tdTime.appendChild(document.createTextNode(timeString));
	var tdDesc = document.createElement('td');
	tdDesc.appendChild(document.createTextNode(desc));
	
	tr1 = document.createElement('tr');
	tr1.setAttribute("class", "event-title-row");
	tr1.appendChild(tdDate);
	tr1.appendChild(tdTitle);
	tr2 = document.createElement('tr');
	tr2.setAttribute("class", "event-details-row");
	tr2.appendChild(tdTime);
	tr2.appendChild(tdDesc);
	
	table.appendChild(tr1);
	table.appendChild(tr2);
	
	
  }
	ul.appendChild(table);
  eventDiv.appendChild(ul);
};