/**
 * Magic Dollar Function
 */
function $()
{
  var elements = new Array();
  for (var i = 0; i < arguments.length; i++)
  {
    var element = arguments[i];
    if (typeof element == 'string')
      element = document.getElementById(element);
    if (arguments.length == 1)
      return element;
    elements.push(element);
  }
  return elements;
}


/**
 * Get Element by Class
 *
 * The second and third parameters are optional.
 */
function getElementsByClass(searchClass,node,tag) {
  var classElements = new Array();
  if ( node == null )
    node = document;
  if ( tag == null )
    tag = '*';
  var els = node.getElementsByTagName(tag);
  var elsLen = els.length;
  var pattern = new RegExp('(^|\\s)'+searchClass+'(\\s|$)');
  for (i = 0, j = 0; i < elsLen; i++) {
    if ( pattern.test(els[i].className) ) {
      classElements[j] = els[i];
      j++;
    }
  }
  return classElements;
}


/**
 * Confirm Delete
 */
function confirmDelete(what) {
  var msg = "Are you sure you want to delete "+what+"?";

  if (confirm(msg)) {
    return true;
  } else {
    return false;
  }
}


/**
 * Toggler
 */
function toggle() {
  for ( var i=0; i < arguments.length; i++ ) {
    if ($(arguments[i])) {
      $(arguments[i]).style.display = ($(arguments[i]).style.display != 'none' ? 'none' : '' );
    }
  }
  return false;
}


/**
 * Add Event
 */
function addEvent(obj, type, fn) {
  if (obj.addEventListener) {
    obj.addEventListener( type, fn, false );
    EventCache.add(obj, type, fn);
  } else if (obj.attachEvent) {
    obj["e"+type+fn] = fn;
    obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
    obj.attachEvent( "on"+type, obj[type+fn] );
    EventCache.add(obj, type, fn);
  } else {
    obj["on"+type] = obj["e"+type+fn];
  }
}

var EventCache = function() {
  var listEvents = [];
  return {
    listEvents : listEvents,
    add : function(node, sEventName, fHandler){
      listEvents.push(arguments);
    },
    flush : function(){
      var i, item;
      for(i = listEvents.length - 1; i >= 0; i = i - 1){
        item = listEvents[i];
        if(item[0].removeEventListener){
          item[0].removeEventListener(item[1], item[2], item[3]);
        };
        if(item[1].substring(0, 2) != "on"){
          item[1] = "on" + item[1];
        };
        if(item[0].detachEvent){
          item[0].detachEvent(item[1], item[2]);
        };
        item[0][item[1]] = null;
      };
    }
  };
}();

function printPage() {
  if ($("print")) {
    $("print").innerHTML = '<a href="javascript:window.print();">Print this Page</a>';
  }
}

function goBack() {
  if ($("back")) {
    $("back").innerHTML = '<a href="javascript:history.go(-1);">&laquo; Back</a>';
  }
}

window.onload = function(e) {
  toggle('hide','updateEmailForm','updateBranchForm');
  setPageTools();
  printPage();
  goBack();
  writeMyCPL();
  initBMM();
  initSearchCal();
  initClearForm();
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
	//setSiteWidth();
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

/**
 * $cmignore
 */

/**
 * Jump Menu
 */
function jumpMenu(terms, types, eid, pid, range, mode) {
  var terms;
  var types;
  var eid;
  var pid;
  var range;
  var mode;

  if (eid == 0 && pid == 0) {
    var searchPage = 'results';
  } else {
    var searchPage = 'refine';
  }

  var selInd = document.sortByForm.sortBy.selectedIndex;
  var goTo = document.sortByForm.sortBy.options[selInd].value;
  location.href = "/search/"+searchPage+"/terms/"+terms+"/searchType/"+types+"/range/"+range+"/matchMode/"+mode+"/sort/"+goTo+"/n/"+eid+"/p/"+pid+"/";
} // jumpMenu()


/**
 * getAvailability()
 */
function getAvailability() {
  // Create the XML HTTP Request Object
  var ajaxRequest = getHTTPObject();
  var controlNumber = document.getElementById("checkAvailability").getAttribute("rel");
  var url = "/availability/index/controlNumber/" + controlNumber + "/";
  // Create a function that will receive data sent from the server
  ajaxRequest.onreadystatechange = function() {
  if(ajaxRequest.readyState == 4) {
    document.getElementById("availabilityTable").innerHTML = ajaxRequest.responseText;
  } else {
    document.getElementById("availabilityTable").innerHTML = '<h2>Checking Availability &raquo;</h2><img src="/dir_images/loading.gif" alt="Checking..." title="Checking..." />';
  }
}
  // Send the POST request
  ajaxRequest.open("GET", url, true);
  /* ajaxRequest.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); // Only needed for POST */
  ajaxRequest.send(url);
  // Prevent the form from being submited
  return false;
} // getAvailability()


/**
 * getHTTPObject()
 */
function getHTTPObject() {
 var xmlhttp;
 // Use IE's ActiveX items to load the file.
  if(typeof ActiveXObject != 'undefined') {
    try {
      xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    }
    catch (e) {
      try {
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    }
    catch (E) {
      xmlhttp = false;
      }
    }
  // If ActiveX is not available, use the XMLHttpRequest of Firefox/Mozilla etc. to load the document.
  } else if (XMLHttpRequest) {
    try {
      xmlhttp = new XMLHttpRequest();
    }
    catch (e) {
      xmlhttp = false;
    }
  } else {
    xmlhttp = false;
    }
  return xmlhttp;
}


/**
 * $/cmignore
 */

function  writeMyCPL() {
  var emailLink = $("updateEmailLink");
  var branchLink = $("updateBranchLink");
  if (emailLink) {
    emailLink.innerHTML = '&nbsp;&nbsp;&nbsp;[ <a href="#updateEmail" onclick="rewriteLink(this); return toggle(\'updateEmailForm\');">Update</a> ]';
  }
  if (branchLink) {
    branchLink.innerHTML = '&nbsp;&nbsp;&nbsp;[ <a href="#updateBranch" onclick="rewriteLink(this); return toggle(\'updateBranchForm\');">Update</a> ]';
  }
}


function rewriteLink(what) {
  if (what.innerHTML != "Cancel") {
    what.innerHTML = "Cancel";
  } else {
    what.innerHTML = "Update";
  }
}

function toggleRadio(what) {
   document.getElementById(what).checked=true;
}
/**
 * initSearchCal()
 */
function initSearchCal() {
  if ($("searchAgain")) {
    toggle('eventSearchForm');
    $("searchAgain").onclick = function () {
      return toggle('eventSearchForm','calendar','calShow');
    }
  }

  if ($("calShow")) {
    toggle('calendar');
    $("calShow").onclick = function () {
      return toggle('eventSearchForm','calendar','calShow');
    }
  }

}
/**
 * script for toggling the Books Movies and More categories
 */

function initBMM() {
    if ($("expandLinks")) {
        var holder = $("expandLinks");
        var links = holder.getElementsByTagName("a");

        for (var i = 0; i < links.length; i++) {
            links[i].onclick = expCol;
        }
    }
}

function expCol() {
    var holder = $("expandLinks");
    var links = holder.getElementsByTagName("a");
    var imgs = holder.getElementsByTagName("img");
    var str = "expand";

    for (var i = 0; i < imgs.length; i++) {
        if (imgs[i].src.match(str)) {
            imgs[i].setAttribute("src","/dir_images/btn_collapse.gif");
        } else {
            imgs[i].setAttribute("src","/dir_images/btn_expand.gif");
        }
    }
    toggle('hide');
    return false;
}
var i = 0;

function goPrev(what) {
  var titleList = eval("raList"+what+"['titles']");
  var raTotal = titleList.length;

  if (i == 0) {
    i = raTotal-1;
    setState(what);
  } else {
    i = i-1;
    setState(what);
  }

  return false;
}


function goNext(what) {
  var titleList = eval("raList"+what+"['titles']");
  var raTotal = titleList.length;

  if (i == raTotal-1) {
    i = 0;
    setState(what);
    i = i+1;
  } else if (i < raTotal) {
    i = i+1;
    setState(what);
  }

  return false;
}

function setState(what) {

  var titleList = eval("raList"+what+"['titles']");
  var authorList = eval("raList"+what+"['authors']");
  var imageList = eval("raList"+what+"['images']");
  var linkList = eval("raList"+what+"['urls']");

  $("raListImg"+what).src = imageList[i];
  $("raListImg"+what).setAttribute("alt", titleList[i]);
  $("raListImg"+what).setAttribute("title", titleList[i]);
  $("raListTitle"+what).innerHTML = titleList[i];
  $("raListAuthor"+what).innerHTML = authorList[i];
  $("raListImgLink"+what).setAttribute("href", linkList[i]);
  $("raListLink"+what).setAttribute("href", linkList[i]);
  $("raListLink"+what).setAttribute("title", titleList[i]);
  $("raListTitleLink"+what).setAttribute("href", linkList[i]);
}

function setPageTools() {
	var fntSizer = $("fontSizer");
	if (fntSizer)	{
		fntSizer.innerHTML = 'Font Size <a href="javascript:void(0);" onclick="setActiveStyleSheet(\'Base\'); return false;"><img src="/dir_images/resize-default.gif" alt="Resize Text - Default" width="8" height="9" /></a> <a href="javascript:void(0);" onclick="setActiveStyleSheet(\'Lrg\'); return false;"><img src="/dir_images/resize-medium.gif" alt="Resize Text - Medium" width="9" height="11" /></a> <a href="javascript:void(0);" onclick="setActiveStyleSheet(\'Lrgest\'); return false;"><img src="/dir_images/resize-large.gif" alt="Resize Text - Large" width="10" height="12" /></a>';
	}
}

function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);

/**
 * initClearForm()
 */
function initClearForm() {
  if ($("clearForm"))  { $("clearForm").onclick = resetForm; }
  if ($("clearForm2"))  { $("clearForm2").onclick = resetForm; }

} // initClearForm()


/**
 * resetForm()
 */
function resetForm() {
  document.forms["advancedSearchForm"].reset();
  return false;

} // resetForm()