/* 
 * BASED ON:
 * Video object, developed by the Dutch Ministry of Health, Welfare and Sport and 'Werkgroep Stijlgids' of the New Media Commission (CNM)
 * inspired on: 
 *    - swfobject (http://blog.deconcept.com/swfobject/)
 *    - GTObject (http://blog.deconcept.com/2005/01/26/web-standards-compliant-javascript-quicktime-detect-and-embed/)
 *
 * Author:			Marc Gerritsen (m.gerritsen@minvws.nl)
 * Version:			0.7 (11-12-2007)
 * Works on:		Internet Explorer 6/7, Firefox 1.5/2, Safari 2, Opera 9
 * Description:		Original based on swfobject 1.5, Toggle functions: Original Dutch Ministry of Health code 
 *
 * Modified:		v1.0 27/10/2008 C. Stott (christiestott@gmail.com) 
 *					Movie object: Updated to swfobject 2.1 (must use with swfobject21.js)
 *					
 */

//define player
var mediaplayerFile = "http://www.eduweb.vic.gov.au/edulibrary/public/video/player43.swf";

//Video object
 Video = function(id, moviePath, imagePath, playerWidth, playerHeight, toggleWidth, displayContainer) {
	this.id = id;

	//define movie or playlist
	this.moviePath = moviePath;
	this.imagePath = imagePath;
	//define movie display
	this.playerWidth = playerWidth;
	this.playerHeight = playerHeight;
	
	//define container and media hide/show
	this.toggleWidth = toggleWidth;
	this.displayContainer = displayContainer;
 }
 
//adds caption to object, movie.addCaptions("filename");
Video.prototype.addCaption = function(filename) {
	this.caption = filename;
}

//adds playlist to object, movie.addPlaylistsize;
Video.prototype.addPlaylistsize = function(width) {
	this.listSize = width;
}

//adds playlist to object, movie.addPlaylist;
Video.prototype.addPlaylist = function(position) {
	this.playList = position;
}


//writes correct movie to html element
Video.prototype.write = function(elementid) {
	
	var flashvars = {
		file:this.moviePath, 
		image:this.imagePath,
		skin:"http://www.eduweb.vic.gov.au/edulibrary/public/video/skin.swf",
		logo:"http://www.education.vic.gov.au/images/template/videologo.png",
		playlistsize:this.listSize,
		playlist:this.playList,
		//captions:this.caption,
		plugins:"googlytics-1",
		autostart:"false",
		volume:"30",
		stretching:"uniform",
		quality:"true",
		abouttext:"DEECD video",
		aboutlink:"http://www.education.vic.gov.au",
		linktarget:"_blank",
		author:"Department of Education and Early Childhood Development"
	}
	
	// if captions required
	if(this.caption != "") {
		flashvars.captions = this.caption;
		flashvars.plugins = "accessibility-1";
	}
	
	//if playlist required
	if(this.listSize != "") {
		flashvars.playlistsize = this.listSize;
	}
	// if playlist position required
	if(this.playList != "") {
		flashvars.playlist = this.playList;
	}
	
	var params = {
		allowfullscreen:"true", 
		allowscriptaccess:"always"
	}

	var attributes = {
		id:this.id,  
		name:this.id
	}
	//embed flash player
	swfobject.embedSWF(mediaplayerFile, this.displayContainer, this.playerWidth, this.playerHeight, "9.0.115", false, flashvars, params, attributes);

	    //get element with id
        var element = document.getElementById(elementid);
		if (element) {
			//set with to parentnode: TODO: maybe only on li elements
			element.parentNode.style.width = parseInt(this.toggleWidth) + "px";
		    Video_makeListToggle(elementid);
		}
}

// function hides or shows an element with stylesheet classes
function Video_toggle(objid) {
	var el = document.getElementById(objid);
	
	if ( el.className == 'close' ) el.className = 'open';
	else el.className = 'close';
}


// create toggle with a list ID - hide text
function Video_makeListToggle(liID) {		
  var element = document.getElementById(liID);

	//list classes
   if(element) {
	   var parent = Video_getParentByClassname("moviecontent", element);
	  
	   if(parent) 
	     var elements = Video_getElementsByClassName("toggle","LI", parent);
	   else
	     var elements = Video_getElementsByClassName("toggle","LI");
	   
	   //loop elements
	   var elementsLength = elements.length;
	   for(var i = 0; i < elementsLength; i++) {
		    var ulID = "Video_ToggleMenu_" + i + liID;	
		    var toggleEl = "";
		    var header  = "";
            
			
			// create the toogle from with H4 tags
			var childNodesLength = elements[i].childNodes.length;
			for (var j = 0; j < childNodesLength ; j++ ){
				 var tagName = elements[i].childNodes[j].tagName;

				 if ((tagName == "H2" || tagName == "H3" || tagName == "H4" || tagName == "H5" || tagName == "H6" || tagName == "SPAN" || tagName == "A") && header == "") {
					 header = elements[i].childNodes[j];
					 var headerID = "Video_ToggleLink_" + i +  liID;

					 // add link to toogle H4 header
					 if(tagName == "A") {
						header.id = headerID;
					    header.onclick = "Video_toggle(\'" + ulID  + "\'); Video_toggle(this.id); return false;";
					 } else {
                        header.innerHTML = '<a href="#" id="' + headerID + '" onclick="Video_toggle(\'' + ulID  + '\'); Video_toggle(this.id); return false;">' + header.innerHTML + '</a>';
					 }
					 Video_toggle(headerID);
				 } 
				 if((tagName == "UL" || tagName == "DIV" || tagName == "P") && toggleEl == "") {
					 toggleEl = elements[i].childNodes[j];
					 toggleEl.id = ulID;
					 Video_toggle(ulID);
				 }
			}
	   }
   }
   else alert("id '" + liID + "'not found!");
}


function Video_getElementsByClassName(className, tag, elm){
	var testClass = new RegExp("(^|\\s)" + className + "(\\s|$)");
	var tag = tag || "*";
	var elm = elm || document;
	var elements = (tag == "*" && elm.all)? elm.all : elm.getElementsByTagName(tag);
	var returnElements = [];
	var current;
	var length = elements.length;
	for(var i=0; i<length; i++){
		current = elements[i];
		if(testClass.test(current.className)){
			returnElements.push(current);
		}
	}
	return returnElements;
}

function Video_getParentByClassname(className, elm) {
	var testClass = new RegExp("(^|\\s)" + className + "(\\s|$)");
	
	while(elm.tagName != "BODY") {
		if(testClass.test(elm.className)){
			return elm;
		}
		elm = elm.parentNode;
	}
	return false;
}




/* SWFObject v2.1 <http://code.google.com/p/swfobject/>
	Copyright (c) 2007-2008 Geoff Stearns, Michael Williams, and Bobby van der Sluis
	This software is released under the MIT License <http://www.opensource.org/licenses/mit-license.php>
*/
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