// JavaScript Document

// basic popup window (for social media sharing)
function coa_fb_popup(u,h,w) 
{
 n=window.open(u,'_blank', 'width=' + w + ', height=' + h + ', location=1, directories=0, menubar=0, resizable=0, scrollbars=0, toolbar=0');
 if (window.focus) {n.focus()}
 return false;
}

// http://www.phpmix.org/iframe_height_auto_resize
/*************************************************************\
 *	DYNIFS - Dynamic IFrame Auto Size v1.0.0
 *
 *	Copyright (C) 2006, Markus (phpMiX)
 *	This script is released under GPL License.
 *	Feel free to use this script (or part of it) wherever you need
 *	it ...but please, give credit to original author. Thank you. :-)
 *	We will also appreciate any links you could give us.
 *	http://www.phpmix.org
 *
 *	Enjoy! ;-)
\*************************************************************/

var DYNIFS = {
	// Storage for known IFrames.
	iframes: {},
	// Here we save any previously installed onresize handler.
	oldresize: null,
	// Flag that tell us if we have already installed our onresize handler.
	ready: false,
	// The document dimensions last time onresize was executed.
	dim: [-1,-1],
	// Timer ID used to defer the actual resize action.
	timerID: 0,
	// Obtain the dimensions (width,height) of the given document.
	getDim: function(d) {
		var w=200, h=200, scr_h, off_h;
		if( d.height ) { return [d.width,d.height]; }
		with( d.body ) {
			if( scrollHeight ) { h=scr_h=scrollHeight; w=scrollWidth; }
			if( offsetHeight ) { h=off_h=offsetHeight; w=offsetWidth; }
			if( scr_h && off_h ) h=Math.max(scr_h, off_h);
		}
		return [w,h];
	},
	// This is our window.onresize handler.
	onresize: function() {
		// Invoke any previously installed onresize handler.
		if( typeof this.oldresize == 'function' ) { this.oldresize(); }
		// Check if the document dimensions really changed.
		var dim = this.getDim(document);
		if( this.dim[0] == dim[0] && this.dim[1] == dim[1] ) return;
		// Defer the resize action to prevent endless loop in quirksmode.
		if( this.timerID ) return;
		this.timerID = setTimeout('DYNIFS.deferred_resize();', 10);
	},
	// This is where the actual IFrame resize is invoked.
	deferred_resize: function() {
		// Walk the list of known IFrames to see if they need to be resized.
		for( var id in this.iframes ) this.resize(id);
		// Store resulting document dimensions.
		this.dim = this.getDim(document);
		// Clear the timer flag.
		this.timerID = 0;
	},
	// This is invoked when the IFrame is loaded or when the main window is resized.
	resize: function(id) {
		// Browser compatibility check.
		if( !window.frames || !window.frames[id] || !document.getElementById || !document.body )
			return;
		// Get references to the IFrame window and layer.
		var iframe = window.frames[id];
		var div = document.getElementById(id);
		if( !div ) return;
		// Save the IFrame id for later use in our onresize handler.
		if( !this.iframes[id] ) {
			this.iframes[id] = true;
		}
		// Should we inject our onresize event handler?
		if( !this.ready ) {
			this.ready = true;
			this.oldresize = window.onresize;
			window.onresize = new Function('DYNIFS.onresize();');
		}
		// This appears to be necessary in MSIE to compute the height
		// when the IFrame'd document is in quirksmode.
		// OTOH, it doesn't seem to break anything in standards mode, so...
		if( document.all ) div.style.height = '0px';
		// Resize the IFrame container.
		var dim = this.getDim(iframe.document);
		div.style.height = (dim[1]+30) + 'px';
	}
};
function coa_firefox_ifresize(framename) {
    var thisframe = document.getElementById(framename);
    // unhide?
    if ( thisframe.style.display == "none" ) { thisframe.style.display = ""; }
    var newHeight = thisframe.contentWindow.document.body.scrollHeight + 10;
//alert("resize to " + newHeight);
    thisframe.height = newHeight + "px";	// now stretch
}
function coa_resizeCalendarIframes() {
   var linksToAlter = coa_getElements(
   function(node) {
       return ( node.nodeName == 'IFRAME' &&
                (node.src != null) &&
                (node.src.toLowerCase().indexOf("http://apps.alexandriava.gov/calendar/") == 0)  );
   });
  var gooddom;
  if ( linksToAlter.length > 0 ) {
    gooddom = document.domain;
	try {
    document.domain = "alexandriava.gov";
	} catch(err) { 
	}
  }
  var domainError = false;
  for (var n = 0; n < linksToAlter.length; ++n) {
    var thisframe = linksToAlter[n];
	try {
    // http://stackoverflow.com/questions/525992/resize-iframe-height-according-to-content-height-in-it
    // unhide?
    if ( thisframe.style.display == "none" ) { thisframe.style.display = ""; }
    //thisframe.height = "0px";	// shrink so we see how much space we really need
    if ( (navigator == null) || (navigator.userAgent == null) || (navigator.userAgent.indexOf("Firefox") < 0) ) {
      DYNIFS.resize(thisframe.id);
    } else {
      coa_firefox_ifresize(thisframe.id);
    }
    // "Loading..." ??
    var lind = document.getElementById(thisframe.id + "_loading");
    if ( lind != null ) {
      lind.style.display = "none";
    }
	} catch(err) { 
		domainError = true;
	}
  }
  if ( domainError ) {
		alert("Error loading calendar information!\r\n\r\nIf you are using Internet Explorer, please make sure that you have \"http://alexandriava.gov\", \"http://apps.alexandriava.gov\", and \"http://www.alexandriava.gov\" in the same Zone. For example, if one of those URLs is listed in Trusted Sites, the others need to be, too.") 
  }
}

// http://www.webreference.com/programming/javascript/onloads/
function addLoadEvent(func) {
//alert("adding an onload sub");
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}


function coa_loadCalendarWidgets() {
//alert("creating callouts for calendar JS widgets");
  var linksToAlter = coa_getElements(
  function(node) {
    return ( node.nodeName == 'IMG' &&
                (node.getAttribute("src") != null) &&
                (node.getAttribute("src").toLowerCase().indexOf("/uploadedimages/calendarinsert.png".toLowerCase()) >= 0)  );
  });
//alert("found " + linksToAlter.length + " IMG elements to turn into widget callouts");
  for (var n = 0; n < linksToAlter.length; ++n) {
    var thisImage = linksToAlter[n];
    //alert(thisImage.getAttribute("src"));
    var imgParent = thisImage.parentNode;
    if ( (imgParent != null) && (imgParent.nodeName == 'A') &&
         (imgParent.href.toLowerCase().indexOf("http://apps.alexandriava.gov/calendar/") == 0) &&
         (imgParent.parentNode != null)) {
      // fix this all up
      var wspanname = "coa_cal_widget" + n;
      var wspantargetname = wspanname + "_t";
      var basecalurl = imgParent.href;
      basecalurl = basecalurl + "&de=minimal";
      basecalurl = basecalurl + "&df=list";	// currently only df=list supported
      //if (basecalurl.indexOf("&ds=") < 0 ) { basecalurl = basecalurl + "&ds=bullet"; }
      basecalurl = basecalurl + "&dx=coa_fillCalendarWidgets";
      basecalurl = basecalurl + "&dxa=" + wspantargetname;
      // remove old IMG
      imgParent.removeChild(thisImage);
      var grandp = imgParent.parentNode;
      var wspannode = document.createElement('span');
      wspannode.id = wspanname;
      var newlink = document.createElement('a');
      newlink.href = imgParent.href;
      newlink.innerHTML = "Loading...";
      wspannode.style.display = '';
      // create the SRC tag
      var st = document.createElement('script');
      st.setAttribute('type','text/javascript');
      st.setAttribute('src',basecalurl);
//alert("adding SCRIPT SRC=" + basecalurl);
      var wspantarget = document.createElement('span');
      wspantarget.id = wspantargetname;
      wspantarget.appendChild(newlink);
      wspannode.appendChild(wspantarget);
      wspannode.appendChild(st);
      // big swap
      // replace
      //    A HREF=old cal link
      //      IMG
      // with
      //    SPAN ID=wspanname
      //      SPAN ID=wspantargetname
      //        A HREF=old cal link
      //          "Loading..."
      //      SCRIPT SRC=URL to get cal data with callback including wspantargetname
      grandp.replaceChild(wspannode,imgParent);
    } 
  }
//alert("finished creating iframes");
}

//function coa_fillCalendarWidgets(JSONPResult) {
//  var s = document.getElementById(JSONPResult.arg);
//  s.innerHTML = JSONPResult.html;
//}

function coa_fillCalendarWidgets(JSONPResult) {
  var s = document.getElementById(JSONPResult.arg);
  var newd = document.createElement('span');
  newd.innerHTML = JSONPResult.html;
  if ( s != null ) {
    s.replaceChild(newd,s.firstChild);
  } else {
    window.location.reload();
  }
}

// header image
addLoadEvent(function(){
var e=(document.getElementById)?document.getElementById("myTableId"):(document.all)?document.all.myTableId:(document.layers)?document.myTableId:null;
if(!e)return true;
e.style.backgroundImage="url("+backgroundImages[Math.floor(Math.random()*backgroundImages.length)]+")";
});

// The following controls the weather data display in the red nav bar
// constants
var weatherArrowNormal = "/images/arrows.gif";
var weatherArrowMouseover = "/images/arrows_ro.gif";
// variable
var weatherPos = 0;
// function to scroll through info
function nextWeatherItem() {
  var currentItem = document.getElementById("weather" + weatherPos);
  currentItem.style.visibility = "hidden";
  weatherPos = weatherPos + 1;
  var nextItem = document.getElementById("weather" + weatherPos);
  if ( nextItem == null ) {
    // start over at the beginning
    nextItem = document.getElementById("weather0");
    weatherPos = 0;
  } 
  nextItem.style.visibility = "visible";
}
// make sure we have weather info
function revealWeather() {
var nextItem = document.getElementById("weather" + weatherPos);
  if ( nextItem != null ) {
  // display next arrow
document.writeln(' <a href="javascript:nextWeatherItem();" onMouseOver="document.weatherArrow.src=weatherArrowMouseover;" onMouseOut="document.weatherArrow.src=weatherArrowNormal;"><img name="weatherArrow" src="/images/arrows.gif" alt="Weather Forecast for Alexandria" title="Weather Forecast for Alexandria" border="0" style="position: relative; top: 3px;"/></a>');
  // make current conditions visible
  nextItem.style.visibility = "visible";
}
}

//The following displays random table background images for the COA page header

var backgroundImages=new Array(8);
var bgImageProtocol = "http";
if (window.location.href.toLowerCase().indexOf("https:") == 0) {
  bgImageProtocol = "https";
}
backgroundImages[0]=bgImageProtocol + "://alexandriava.gov/images/header1_bg.jpg";
backgroundImages[1]=bgImageProtocol + "://alexandriava.gov/images/header2_bg.jpg";
backgroundImages[2]=bgImageProtocol + "://alexandriava.gov/images/header3_bg.jpg";
backgroundImages[3]=bgImageProtocol + "://alexandriava.gov/images/header4_bg.jpg";
backgroundImages[4]=bgImageProtocol + "://alexandriava.gov/images/header5_bg.jpg";
backgroundImages[5]=bgImageProtocol + "://alexandriava.gov/images/header6_bg.jpg";
backgroundImages[6]=bgImageProtocol + "://alexandriava.gov/images/header7_bg.jpg";
backgroundImages[7]=bgImageProtocol + "://alexandriava.gov/images/header8_bg.jpg";

//Open new windows
function coa_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

//The following controls jump menus

function MM_jumpMenu(targ,selObj,restore){ //v3.0
  var newURL = selObj.options[selObj.selectedIndex].value;
  if (restore) selObj.selectedIndex=0;
  if ( newURL == "" ) {
    selObj.selectedIndex=0;
    return false;
  }
  //alert("going to \""+newURL+"\"");
  eval(targ+".location='"+newURL+"'");
}


//The following controls showing and hiding layers or hidden divs

function MM_showHideLayers() { //v9.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) 
  with (document) if (getElementById && ((obj=getElementById(args[i]))!=null)) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function coa_toggleVisibility(objname) { 
  obj = document.getElementById(objname);
  if (obj != null) {
    if (obj.style) { 
      if ( obj.style.visibility == 'visible' ) {
        obj.style.visibility = 'hidden';
      } else {
        obj.style.visibility = 'visible';
      }
    }
  }
}



//,'alexandriava\.gov/WorkArea/linkit\.aspx.*#'


// achange.js
// BEGIN $Id: achange.js,v 1.25 2010/05/03 16:20:57 peterw Exp peterw $
// $Revision: 1.25 $

function coa_escapeHTML(text) {
  var buffer = '';
    for (i=0; i < text.length; i++) { 
      var c = text.charAt(i);
      if ( c == '<') { buffer = buffer + '&lt;'; }
      else if ( c == '>') { buffer = buffer + '&gt;'; }
      else if ( c == '&') { buffer = buffer + '&amp;'; }
      else if ( c == '"') { buffer = buffer + '&quot;'; }
      else if ( c == "'") { buffer = buffer + '&apos;'; }
      else { buffer = buffer + c; }
    }
    return buffer;
}

// coa_getElements() -- JS function to crawl DOM and return
// an array of appropriate objects
// http://invisibleblocks.wordpress.com/2006/01/18/hacking-the-browsers-dom-for-fun/
function coa_getElements (evalFunc, node) {
   if (!node) node = document.documentElement;
   var matches = new Array();  // storage space
   if (evalFunc(node))         // if it's a match...
       matches.push(node);     // store it

   var child = node.firstChild;
   while (child) {                // search thru each child
       matches = matches.concat(coa_getElements(evalFunc, child));
       child = child.nextSibling;
   }
   return matches;
}

// coa_wrapAnchors() -- call as an onLoad function
// will edit any A tag's HREF value inside a DOM container 
// (normall a SPAN) whose ID begins with the specified prefix
// *unless* the A tag uses the special preserveClassName class
function coa_wrapAnchors(spanPrefix, linkAppBase, preserveClassName, internalRegex, containerType, siteBaseURL, noLinkRegex) {
  // how "internal" links would start
  var internalURLBase = document.URL;
  var firstPound = internalURLBase.indexOf("#");
  var fragmentToAdd = "";
  if (firstPound > 0) {
    internalURLBase = internalURLBase.substring(0,firstPound);
    fragmentToAdd = internalURLBase.substring(firstPound);
  }
  internalURLBase = internalURLBase + "#";

  // 1) find the spans that might have A tags to alter
  var spansToAlter = coa_getElements(
   function(node) {
       return ( node.nodeName == containerType &&
       		(node.id.indexOf(spanPrefix) == 0) );
   })
  for (var n = spansToAlter.length - 1; n >= 0; --n) {
    // our span name
    var spanName = spansToAlter[n].id.substring(spanPrefix.length);
    // find all the hyperlinks in/under this containerType
    var links = coa_getElements(
     function(node) {
         return node.nodeName == 'A' &&
         ((node.className == null) || (node.className.indexOf(preserveClassName) < 0) );
     }, spansToAlter[n]);
    for (var i = 0; i < links.length; ++i) {
      // the link is always absolute, already
      // calcualted by the browser; make sure it's
      // not already linking through the special URL
      if ( 
	  (links[i].href != null) && 
          (links[i].href.indexOf(internalURLBase) != 0) &&
          ( (links[i].href.indexOf("http://") == 0) || 
            (links[i].href.indexOf("https://") == 0) ||
            (links[i].href.indexOf("ftp://") == 0) ) &&
	  (links[i].href != "") ) {
        // edit the TARGET?
        if (
            (! links[i].href.match(internalRegex)) ||
            (links[i].href.lastIndexOf(".pdf") == (links[i].href.length - 4))
           ) {
//alert("href \"" + links[i].href + "\", internal regex \"" + internalRegex + "\"");

          links[i].target = "_blank";
          // add "opens in new window" text?
          var currentTitle = (links[i].title == null) ? "" : (" " + links[i].title);
          if ( currentTitle.toLowerCase().indexOf("opens in new window") < 0 ) {
              links[i].title = "(opens in new window)" + currentTitle; 
          }
        }
        // alter the HREF as needed
        var htmlContents = links[i].innerHTML;
	var oldh = links[i].href;
        var newh = coa_wrapURL(links[i].href, linkAppBase, internalURLBase, spanName, htmlContents, i, noLinkRegex);
        links[i].href = newh;
if ( newh != oldh ) {
//alert("change \"" + oldh + "\" to \"" + newh + "\"");
}
        links[i].innerHTML = htmlContents;
      } 
      //alert("link " + i + ": " + links[i].text + " - " + links[i].className);
    }
  }

  // 2) look for jump menus
  var selectsToAlter = coa_getElements(
   function(node) {
       return ( node.nodeName == 'SELECT' &&
       		(node.id.indexOf(spanPrefix) == 0) );
   })
  for (var n = selectsToAlter.length - 1; n >= 0; --n) {
    // our select name
    var spanName = selectsToAlter[n].id.substring(spanPrefix.length);
    // find all the OPTIONS inside this SELECT
    var options = coa_getElements(
     function(node) {
         return node.nodeName == 'OPTION';
     }, selectsToAlter[n]);
    for (var i = 0; i < options.length; ++i) {
      var firstSlash = options[i].value.indexOf("/");
      if ( firstSlash >= 0 ) {
        // looks like a URL
        if ( firstSlash == 0 ) {
          // prepend site base URL
          options[i].value = siteBaseURL + options[i].value;
        }
        // now, wrap 
        options[i].value = coa_wrapURL(options[i].value, linkAppBase, internalURLBase, spanName, options[i].innerHTML, i);
      }
    }
    // make the jump menu visible
    selectsToAlter[n].style.display = "";
  }
}

function coa_wrapURL(url, linkAppBase, internalURLBase, spanName, htmlContents, i, noLinkRegex) {
  if (url.match(noLinkRegex)) { return url; }
  var firstPound = url.indexOf("#");
  var fragmentToAdd = "";
  if (firstPound > 0) {
    fragmentToAdd = "&f=1" + url.substring(firstPound);
  }
  // edit the HREF?
  if (
       (url.indexOf(linkAppBase) < 0) && 
       ( (url.indexOf("http://") == 0) || (url.indexOf("https://") == 0) ) &&
       (url.indexOf(internalURLBase) != 0)
  ) {
    // need to build a fancy link; start with HREF and link count
    var newURL = linkAppBase + "?u=" + COA_plus_escape(url) +
                 "&i=" + i + "&s=" + escape(spanName);
    // pass the HTML content of the tag
    if ( htmlContents != null ) { 
      newURL = newURL + "&h=" + escape(coa_escapeHTML(htmlContents));
    }
    return newURL + fragmentToAdd;
  }
  // no need to modify URL, use what you started with
  return url;
}

function COA_plus_escape(text) {
  var newString = "";
  var c = "";
  for (var x = 0; x < text.length; ++x ) {
    c = text.substring(x,(x + 1));
    if ( c == "+" ) {
      newString = newString + "%2B";
    } else {
      newString = newString + escape(c);
    }
  }
  return newString;
}

// END $Id: achange.js,v 1.25 2010/05/03 16:20:57 peterw Exp peterw $

addLoadEvent(function() { coa_resizeCalendarIframes(); });

addLoadEvent(function() { coa_loadCalendarWidgets(); });


addLoadEvent(function(){
	var thisproto = "http";
	if (window.location.href.toLowerCase().indexOf("https:") == 0) {
		thisproto = "https";
	}
	coa_wrapAnchors('coa_',thisproto + '://www.alexandriava.gov/goto.aspx','coa_preserve_link','^https?:\\/\\/([a-z0-9]*\\.?alexandriava\\.gov|alexandria\\.granicus\\.com|egovdev\\.alexgov\\.net|localhost|localhost:[0-9]{1,6}|localhost\\.alexandriava\\.gov:[0-9]{1,6}|mygovhelp\\.us)\\/','SPAN','http://alexandriava.gov','alexandriava\.gov/WorkArea/linkit\.aspx.*#');
});

addLoadEvent(function(){
	var thisproto = "http";
	if (window.location.href.toLowerCase().indexOf("https:") == 0) {
		thisproto = "https";
	}
	coa_wrapAnchors('coa_',thisproto + '://www.alexandriava.gov/goto.aspx','coa_preserve_link','^https?:\\/\\/([a-z0-9]*\\.?alexandriava\\.gov|alexandria\\.granicus\\.com|egovdev\\.alexgov\\.net|localhost|localhost:[0-9]{1,6}|localhost\\.alexandriava\\.gov:[0-9]{1,6}|mygovhelp\\.us)\\/','DIV','http://alexandriava.gov','alexandriava\.gov/WorkArea/linkit\.aspx.*#');
});



function coa_panelAnchorHandler() {
  var internalURLBase = document.URL;
  var firstPound = internalURLBase.indexOf("?");
  var anchorName = "";
  if ((firstPound > 0) && ((internalURLBase.length - firstPound) > 4) ) {
    anchorName = internalURLBase.substring(firstPound + 1);
  }
  if ( (anchorName.indexOf("tab=") == 0) && (anchorName.length > 4) ) {
    coa_showPanel(coa_alphaNumOnly(anchorName.substr(4)));
    window.scrollTo(0,0)
  }
}
  
function coa_showPanel(panelName) {
  var spryPanelGroups = coa_getElements(
   function(node) {
       return node.nodeName == 'DIV' &&
       (node.className == "TabbedPanels");
   });
  for (var i = 0; i < spryPanelGroups.length; ++i) {
    // need the ID for this group
    var groupId = spryPanelGroups[i].id;
    if ( (groupId != null) && (groupId != '') ) {
      // anything here by that name?
      var spryPanels = coa_getElements(
        function(node) {
          return node.nodeName == 'LI' &&
         (node.className == "TabbedPanelsTab" );
      }, spryPanelGroups[i]);
      for (var n = 0; n < spryPanels.length; ++n) {
        var myHtml = coa_alphaNumOnly(coa_strip_tags(spryPanels[n].innerHTML));
        if ( (myHtml != null) && (myHtml == panelName) ) {
          // found it!
          var tp = new Spry.Widget.TabbedPanels(groupId);
          tp.showPanel(n + 1);
          return;
        }
      }
    }
  }
}

function coa_strip_tags(input) {
        var tagRegexp = /\<[^\>]*\>/g;
        var newText = input.replace(tagRegexp,"");
        return newText;
}

function coa_alphaNumOnly(input) {
  var newstring = '';
  for (var i = 0; i < input.length; ++i) {
    var v = input.charCodeAt(i);
    if ( 
         ((v >= 48) && (v <= 57)) ||
         ((v >= 65) && (v <= 90)) ||
         ((v >= 97) && (v <= 122))
     ) {
       newstring = newstring + input.substr(i,1);
    }
  }
  return newstring;
}



addLoadEvent(function() {
  var controls = new Array("coa_weatherToggle", "coa_additionalTabs");
  for (var n = 0; n< controls.length; ++n) {
    var obj = document.getElementById(controls[n]);
    if ( obj != null ) {
      obj.style.display = "";
    }
  }
});

addLoadEvent(function() {
  coa_panelAnchorHandler()
});

function coa_cleanImageTitles() {
  var allImages = coa_getElements(
   function(node) {
       return ( node.nodeName == 'IMG' );
   });
  //var tagRegexp = /<[^>]*?>/g				// if raw HTML
  var tagRegexp = /\&lt\;[a-zA-Z0-9]*?\&gt\;/g		// if escaped HTML (as it should be?)
  for (var n = allImages.length - 1; n >= 0; --n) {
    var thisImage = allImages[n];
    var currentAlt = thisImage.alt;
    if ( (currentAlt != null) && (currentAlt != "") ) {
      var newAlt = currentAlt.replace(tagRegexp," ");
      thisImage.alt = newAlt;
    }
    var currentTitle = thisImage.title;
    if ( (currentTitle != null) && (currentTitle != "") ) {
      var newTitle = currentTitle.replace(tagRegexp," ");
      thisImage.title = newTitle;
    }
  }
}
//addLoadEvent(function() {
//  coa_cleanImageTitles()
//});

/**
*
*  Base64 encode / decode
*  http://www.webtoolkit.info/
*  http://www.webtoolkit.info/javascript-base64.html
*
**/
 
var Base64 = {
 
	// private property
	_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
 
	// public method for decoding
	decode : function (input) {
		var output = "";
		var chr1, chr2, chr3;
		var enc1, enc2, enc3, enc4;
		var i = 0;
 
		input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
 
		while (i < input.length) {
 
			enc1 = this._keyStr.indexOf(input.charAt(i++));
			enc2 = this._keyStr.indexOf(input.charAt(i++));
			enc3 = this._keyStr.indexOf(input.charAt(i++));
			enc4 = this._keyStr.indexOf(input.charAt(i++));
 
			chr1 = (enc1 << 2) | (enc2 >> 4);
			chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
			chr3 = ((enc3 & 3) << 6) | enc4;
 
			output = output + String.fromCharCode(chr1);
 
			if (enc3 != 64) {
				output = output + String.fromCharCode(chr2);
			}
			if (enc4 != 64) {
				output = output + String.fromCharCode(chr3);
			}
 
		}
 
		output = Base64._utf8_decode(output);
		return output;
 
	},
 
 
	// private method for UTF-8 decoding
	_utf8_decode : function (utftext) {
		var string = "";
		var i = 0;
		var c = c1 = c2 = 0;
 
		while ( i < utftext.length ) {
 
			c = utftext.charCodeAt(i);
 
			if (c < 128) {
				string += String.fromCharCode(c);
				i++;
			}
			else if((c > 191) && (c < 224)) {
				c2 = utftext.charCodeAt(i+1);
				string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
				i += 2;
			}
			else {
				c2 = utftext.charCodeAt(i+1);
				c3 = utftext.charCodeAt(i+2);
				string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
				i += 3;
			}
 
		}
 
		return string;
	}
 
}

function coa_toggleShareBox(showone) {
	      var coa_togglebox = document.getElementsByTagName("div");
            for(var x=0; x<coa_togglebox.length; x++) {
                  name = coa_togglebox[x].getAttribute("name");
                  if (name == 'coa_togglebox') {
                        if (coa_togglebox[x].id == showone) {
                        coa_togglebox[x].style.display = ( coa_togglebox[x].style.display != 'block' ) ? 'block' : 'none';
                  }
                  else {
                        coa_togglebox[x].style.display = 'none';
                  }
            }
      }
} 

function coa_print()
{ 
	var disp_setting="toolbar=no,location=no,directories=no,menubar=no,scrollbars=yes,width=800,height=600,left=100,top=25"; 

	if ( document.getElementById("coa_content") == null ) { 
		alert("Error printing with this button!");
	}
	var content_value = document.getElementById("coa_content").innerHTML; 

	var docprint=window.open("","",disp_setting); 
	if ( docprint == null ) { 
		alert("Error printing with this button!");
	}

 	docprint.document.open(); 
 	docprint.document.write('<html><head>' + String.fromCharCode(60) + 'title>City of Alexandria, Virginia</title><link href="/print2.css" rel="stylesheet" type="text/css" /><link href="/print3.css" rel="stylesheet" type="text/css" media="print" /></head><body><div style="float:right;text-align:center;width:85px;border:1px solid blue;background-color:#ececec;padding:8px;font-weight:bold;" class="noprint2" ><a href="javascript:window.print();">Print This Page</a></div><div style="font-weight:bold;font-size:24px;letter-spacing:1px;padding:0 0 15px 0;"><img src="https://www.alexandriava.gov/images/cityseal-small.gif" alt="City of Alexandria, VA" align="absmiddle"> City of Alexandria, VA</div>');
 	docprint.document.write(content_value);
 	docprint.document.write('</body></html>'); 
 	docprint.document.close(); 
 	docprint.focus(); 
}

function coa_show_logout(htmlContent) {
	if ( document.cookie == null ) { return; }
	if ( document.cookie.indexOf("COA_SSO=") < 0 ) { return; }
	document.writeln(htmlContent);
}

function coa_framekiller() {
	//return();
	// http://coderrr.wordpress.com/2009/06/18/anti-anti-frame-busting/
	//if (top != self) {  
		//top.location.replace(document.location);  
		//alert('Removing unauthorized frame.'); 
	//}  
}

function coa_MapLocation(label,location,args) {
    if ( args == null ) { args = ""; }
    var mapThisURL = "http://apps.alexandriava.gov/MapThis/?p=1&a=" + escape(location) + "&n=" + escape(label) + args;
    window.open(mapThisURL,'','scrollbars=no,toolbar=no,resizable=no,menubar=no,directories=no,location=no,copyhistory=no,height=500,width=625');
}