Solved

youtube on page slowing down the loading

Posted on 2008-10-16
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523 Views
Last Modified: 2008-12-31
on my main page i have sliding divs show- that means that every 10 seconds there is another div displayed.
on every one of the divs i wanted to show a video, so i embed youtubes...
but now its taking long time to load the page.

why? and what can i do?
0
Comment
Question by:Sasha-N
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5 Comments
 
LVL 5

Expert Comment

by:Devario Johnson
ID: 22737634
u can use javaScript or JQuery have the videos in a CSS state of display:none when the divs are closed.

Then when it is opened or right b4 make them visible, and then change the other to display:none

0
 

Author Comment

by:Sasha-N
ID: 22740469
you meant the js file and not a css?
if so, then this is my js file that controls the youtube and the div slide show.

/*!	SWFObject v2.0 rc3 <http://code.google.com/p/swfobject/>
	Copyright (c) 2007 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>
*/
 
var swfobject = function() {
	
	var UNDEF = "undefined",
		OBJECT = "object",
		CSS_VISIBLE = "visibility:visible",
		CSS_HIDDEN = "visibility:hidden",
		SHOCKWAVE_FLASH = "Shockwave Flash",
		SHOCKWAVE_FLASH_AX = "ShockwaveFlash.ShockwaveFlash",
		FLASH_MIME_TYPE = "application/x-shockwave-flash",
		EXPRESS_INSTALL_ID = "SWFObjectExprInst",
	
		domLoadFnArr = [],
		regObjArr = [],
		timer = null,
		storedAltContent = null,
		isDomLoaded = false,
		isExpressInstallActive = false;
	
	/* Centralized function for browser feature detection
		- Proprietary feature detection (conditional compiling) is used to detect Internet Explorer's features
		- User agent string detection is only used when no alternative is possible
		- Is executed directly for optimal performance
	*/	
	var ua = function() {
		var w3cdom = typeof document.getElementById != UNDEF && typeof document.getElementsByTagName != UNDEF && typeof document.createElement != UNDEF && typeof document.appendChild != UNDEF && typeof document.replaceChild != UNDEF && typeof document.removeChild != UNDEF && typeof document.cloneNode != UNDEF,
			playerVersion = [0,0,0],
			d = null;
		if (typeof navigator.plugins != UNDEF && typeof navigator.plugins[SHOCKWAVE_FLASH] == OBJECT) {
			d = navigator.plugins[SHOCKWAVE_FLASH].description;
			if (d) {
				d = d.replace(/^.*\s+(\S+\s+\S+$)/, "$1");
				playerVersion[0] = parseInt(d.replace(/^(.*)\..*$/, "$1"), 10);
				playerVersion[1] = parseInt(d.replace(/^.*\.(.*)\s.*$/, "$1"), 10);
				playerVersion[2] = /r/.test(d) ? parseInt(d.replace(/^.*r(.*)$/, "$1"), 10) : 0;
			}
		}
		else if (typeof window.ActiveXObject != UNDEF) {
			var a = null, fp6Crash = false;
			try {
				a = new ActiveXObject(SHOCKWAVE_FLASH_AX + ".7");
			}
			catch(e) {
				try { 
					a = new ActiveXObject(SHOCKWAVE_FLASH_AX + ".6");
					playerVersion = [6,0,21];
					a.AllowScriptAccess = "always";  // Introduced in fp6.0.47
				}
				catch(e) {
					if (playerVersion[0] == 6) {
						fp6Crash = true;
					}
				}
				if (!fp6Crash) {
					try {
						a = new ActiveXObject(SHOCKWAVE_FLASH_AX);
					}
					catch(e) {}
				}
			}
			if (!fp6Crash && a) { // a will return null when ActiveX is disabled
				try {
					d = a.GetVariable("$version");  // Will crash fp6.0.21/23/29
					if (d) {
						d = d.split(" ")[1].split(",");
						playerVersion = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
					}
				}
				catch(e) {}
			}
		}
		var u = navigator.userAgent.toLowerCase(),
			p = navigator.platform.toLowerCase(),
			webkit = /webkit/.test(u),
			webkitVersion = webkit ? parseFloat(u.replace(/^.*webkit\/(\d+(\.\d+)?).*$/, "$1")) : 0,
			ie = false,
			win = p ? /win/.test(p) : /win/.test(u),
			mac = p ? /mac/.test(p) : /mac/.test(u);
		/*@cc_on
			ie = true;
			@if (@_win32)
				win = true;
			@elif (@_mac)
				mac = true;
			@end
		@*/
		return { w3cdom:w3cdom, playerVersion:playerVersion, webkit:webkit, webkitVersion:webkitVersion, ie:ie, win:win, mac:mac };
	}();
		
	/* Cross-browser onDomLoad
		- Based on Dean Edwards' solution: http://dean.edwards.name/weblog/2006/06/again/
		- Will fire an event as soon as the DOM of a page is loaded (supported by Gecko based browsers - like Firefox -, IE, Opera9+, Safari)
	*/ 
	var onDomLoad = function() {
		if (!ua.w3cdom) {
			return;
		}
		addDomLoadEvent(main);
		if (ua.ie && ua.win) {
			try {  // Avoid a possible Operation Aborted error
				document.write("<scr" + "ipt id=__ie_ondomload defer=true src=//:></scr" + "ipt>"); // String is split into pieces to avoid Norton AV to add code that can cause errors 
				var s = document.getElementById("__ie_ondomload");
				if (s) {
					s.onreadystatechange = function() {
						if (this.readyState == "complete") {
							this.parentNode.removeChild(this);
							callDomLoadFunctions();
						}
					};
				}
			}
			catch(e) {}
		}
		if (ua.webkit && typeof document.readyState != UNDEF) {
			timer = setInterval(function() { if (/loaded|complete/.test(document.readyState)) { callDomLoadFunctions(); }}, 10);
		}
		if (typeof document.addEventListener != UNDEF) {
			document.addEventListener("DOMContentLoaded", callDomLoadFunctions, null);
		}
		addLoadEvent(callDomLoadFunctions);
	}();
	
	function callDomLoadFunctions() {
		if (isDomLoaded) {
			return;
		}
		if (ua.ie && ua.win) { // Test if we can really add elements to the DOM; we don't want to fire it too early
			var s = document.createElement("span");
			try { // Avoid a possible Operation Aborted error
				var t = document.getElementsByTagName("body")[0].appendChild(s);
				t.parentNode.removeChild(t);
			}
			catch (e) {
				return;
			}
		}
		isDomLoaded = true;
		if (timer) {
			clearInterval(timer);
			timer = null;
		}
		var dl = domLoadFnArr.length;
		for (var i = 0; i < dl; i++) {
			domLoadFnArr[i]();
		}
	}
	
	function addDomLoadEvent(fn) {
		if (isDomLoaded) {
			fn();
		}
		else { 
			domLoadFnArr[domLoadFnArr.length] = fn; // Array.push() is only available in IE5.5+
		}
	}
	
	/* Cross-browser onload
		- Based on James Edwards' solution: http://brothercake.com/site/resources/scripts/onload/
		- Will fire an event as soon as a web page including all of its assets are loaded 
	 */
	function addLoadEvent(fn) {
		if (typeof window.addEventListener != UNDEF) {
			window.addEventListener("load", fn, false);
		}
		else if (typeof document.addEventListener != UNDEF) {
			document.addEventListener("load", fn, false);
		}
		else if (typeof window.attachEvent != UNDEF) {
			window.attachEvent("onload", fn);
		}
		else if (typeof window.onload == "function") {
			var fnOld = window.onload;
			window.onload = function() {
				fnOld();
				fn();
			};
		}
		else {
			window.onload = fn;
		}
	}
	
	/* Main function
		- Will preferably execute onDomLoad, otherwise onload (as a fallback)
	*/
	function main() { // Static publishing only
		var rl = regObjArr.length;
		for (var i = 0; i < rl; i++) { // For each registered object element
			var id = regObjArr[i].id;
			if (ua.playerVersion[0] > 0) { // If no fp is installed, we let the object element do its job (show alternative content)
				var obj = document.getElementById(id);
				if (obj) {
					regObjArr[i].width = obj.getAttribute("width") ? obj.getAttribute("width") : "0";
					regObjArr[i].height = obj.getAttribute("height") ? obj.getAttribute("height") : "0";
					if (hasPlayerVersion(regObjArr[i].swfVersion)) { // Flash plug-in version >= Flash content version: Houston, we have a match!
						if (ua.webkit && ua.webkitVersion < 312) { // Older webkit engines ignore the object element's nested param elements
							fixParams(obj);
						}
					}
					else if (regObjArr[i].expressInstall && !isExpressInstallActive && hasPlayerVersion([6,0,65]) && (ua.win || ua.mac)) { // Show the Adobe Express Install dialog if set by the web page author and if supported (fp6.0.65+ on Win/Mac OS only)
						showExpressInstall(regObjArr[i]);
					}
					else { // Flash plug-in and Flash content version mismatch: display alternative content instead of Flash content
						displayAltContent(obj);
					}
				}
			}
			createCSS("#" + id, CSS_VISIBLE);
		}
	}
	
	/* Fix nested param elements, which are ignored by older webkit engines
		- This includes Safari up to and including version 1.2.2 on Mac OS 10.3
		- Fall back to the proprietary embed element
	*/
	function fixParams(obj) {
		var nestedObj = obj.getElementsByTagName(OBJECT)[0];
		if (nestedObj) {
			var e = document.createElement("embed"), a = nestedObj.attributes;
			if (a) {
				var al = a.length;
				for (var i = 0; i < al; i++) {
					if (a[i].nodeName.toLowerCase() == "data") {
						e.setAttribute("src", a[i].nodeValue);
					}
					else {
						e.setAttribute(a[i].nodeName, a[i].nodeValue);
					}
				}
			}
			var c = nestedObj.childNodes;
			if (c) {
				var cl = c.length;
				for (var j = 0; j < cl; j++) {
					if (c[j].nodeType == 1 && c[j].nodeName.toLowerCase() == "param") {
						e.setAttribute(c[j].getAttribute("name"), c[j].getAttribute("value"));
					}
				}
			}
			obj.parentNode.replaceChild(e, obj);
		}
	}
	
	/* Fix hanging audio/video threads and force open sockets and NetConnections to disconnect
		- Occurs when unloading a web page in IE using fp8+ and innerHTML/outerHTML
		- Dynamic publishing only
	*/
	function fixObjectLeaks(id) {
		if (ua.ie && ua.win && hasPlayerVersion([8,0,0])) {
			window.attachEvent("onunload", function () {
				var obj = document.getElementById(id);
				for (var i in obj) {
					if (typeof obj[i] == "function") {
						obj[i] = function() {};
					}
				}
				obj.parentNode.removeChild(obj);
			});
		}
	}
	
	/* Show the Adobe Express Install dialog
		- Reference: http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=6a253b75
	*/
	function showExpressInstall(regObj) {
		isExpressInstallActive = true;
		var obj = document.getElementById(regObj.id);
		if (obj) {
			if (regObj.altContentId) {
				var ac = document.getElementById(regObj.altContentId);
				if (ac) {
					storedAltContent = ac;
				}
			}
			else {
				storedAltContent = abstractAltContent(obj);
			}
			if (!(/%$/.test(regObj.width)) && parseInt(regObj.width, 10) < 310) {
				regObj.width = "310";
			}
			if (!(/%$/.test(regObj.height)) && parseInt(regObj.height, 10) < 137) {
				regObj.height = "137";
			}
			document.title = document.title.slice(0, 47) + " - Flash Player Installation";
			var pt = ua.ie && ua.win ? "ActiveX" : "PlugIn",
				dt = document.title,
				fv = "MMredirectURL=" + window.location + "&MMplayerType=" + pt + "&MMdoctitle=" + dt,
				replaceId = regObj.id;
			// For IE when a SWF is loading (AND: not available in cache) wait for the onload event to fire to remove the original object element
			// In IE you cannot properly cancel a loading SWF file without breaking browser load references, also obj.onreadystatechange doesn't work
			if (ua.ie && ua.win && obj.readyState != 4) {
				var newObj = document.createElement("div");
				replaceId += "SWFObjectNew";
				newObj.setAttribute("id", replaceId);
				obj.parentNode.insertBefore(newObj, obj); // Insert placeholder div that will be replaced by the object element that loads expressinstall.swf
				obj.style.display = "none";
				window.attachEvent("onload", function() { obj.parentNode.removeChild(obj); });
			}
			createSWF({ data:regObj.expressInstall, id:EXPRESS_INSTALL_ID, width:regObj.width, height:regObj.height }, { flashvars:fv }, replaceId);
		}
	}
	
	/* Functions to abstract and display alternative content
	*/
	function displayAltContent(obj) {
		if (ua.ie && ua.win && obj.readyState != 4) {
			// For IE when a SWF is loading (AND: not available in cache) wait for the onload event to fire to remove the original object element
			// In IE you cannot properly cancel a loading SWF file without breaking browser load references, also obj.onreadystatechange doesn't work
			var el = document.createElement("div");
			obj.parentNode.insertBefore(el, obj); // Insert placeholder div that will be replaced by the alternative content
			el.parentNode.replaceChild(abstractAltContent(obj), el);
			obj.style.display = "none";
			window.attachEvent("onload", function() { obj.parentNode.removeChild(obj); });
		}
		else {
			obj.parentNode.replaceChild(abstractAltContent(obj), obj);
		}
	}	
 
	function abstractAltContent(obj) {
		var ac = document.createElement("div");
		if (ua.win && ua.ie) {
			ac.innerHTML = obj.innerHTML;
		}
		else {
			var nestedObj = obj.getElementsByTagName(OBJECT)[0];
			if (nestedObj) {
				var c = nestedObj.childNodes;
				if (c) {
					var cl = c.length;
					for (var i = 0; i < cl; i++) {
						if (!(c[i].nodeType == 1 && c[i].nodeName.toLowerCase() == "param") && !(c[i].nodeType == 8)) {
							ac.appendChild(c[i].cloneNode(true));
						}
					}
				}
			}
		}
		return ac;
	}
	
	/* Cross-browser dynamic SWF creation
	*/
	function createSWF(attObj, parObj, id) {
		var r, el = document.getElementById(id);
		if (typeof attObj.id == UNDEF) { // if no 'id' is defined for the object element, it will inherit the 'id' from the alternative content
			attObj.id = id;
		}
		if (ua.ie && ua.win) { // IE, the object element and W3C DOM methods do not combine: fall back to outerHTML
			var att = "";
			for (var i in attObj) {
				if (attObj[i] != Object.prototype[i]) { // Filter out prototype additions from other potential libraries, like Object.prototype.toJSONString = function() {}
					if (i == "data") {
						parObj.movie = attObj[i];
					}
					else if (i.toLowerCase() == "styleclass") { // 'class' is an ECMA4 reserved keyword
						att += ' class="' + attObj[i] + '"';
					}
					else if (i != "classid") {
						att += ' ' + i + '="' + attObj[i] + '"';
					}
				}
			}
			var par = "";
			for (var j in parObj) {
				if (parObj[j] != Object.prototype[j]) { // Filter out prototype additions from other potential libraries
					par += '<param name="' + j + '" value="' + parObj[j] + '" />';
				}
			}
			el.outerHTML = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"' + att + '>' + par + '</object>';
			fixObjectLeaks(attObj.id); // This bug affects dynamic publishing only
			r = document.getElementById(attObj.id);	
		}
		else if (ua.webkit && ua.webkitVersion < 312) { // Older webkit engines ignore the object element's nested param elements: fall back to the proprietary embed element
			var e = document.createElement("embed");
			e.setAttribute("type", FLASH_MIME_TYPE);
			for (var k in attObj) {
				if (attObj[k] != Object.prototype[k]) { // Filter out prototype additions from other potential libraries
					if (k == "data") {
						e.setAttribute("src", attObj[k]);
					}
					else if (k.toLowerCase() == "styleclass") { // 'class' is an ECMA4 reserved keyword
						e.setAttribute("class", attObj[k]);
					}
					else if (k != "classid") { // Filter out IE specific attribute
						e.setAttribute(k, attObj[k]);
					}
				}
			}
			for (var l in parObj) {
				if (parObj[l] != Object.prototype[l]) { // Filter out prototype additions from other potential libraries
					if (l != "movie") { // Filter out IE specific param element
						e.setAttribute(l, parObj[l]);
					}
				}
			}
			el.parentNode.replaceChild(e, el);
			r = e;
		}
		else { // Well-behaving browsers
			var o = document.createElement(OBJECT);
			o.setAttribute("type", FLASH_MIME_TYPE);
			for (var m in attObj) {
				if (attObj[m] != Object.prototype[m]) { // Filter out prototype additions from other potential libraries
					if (m.toLowerCase() == "styleclass") { // 'class' is an ECMA4 reserved keyword
						o.setAttribute("class", attObj[m]);
					}
					else if (m != "classid") { // Filter out IE specific attribute
						o.setAttribute(m, attObj[m]);
					}
				}
			}
			for (var n in parObj) {
				if (parObj[n] != Object.prototype[n] && n != "movie") { // Filter out prototype additions from other potential libraries and IE specific param element
					createObjParam(o, n, parObj[n]);
				}
			}
			el.parentNode.replaceChild(o, el);
			r = o;
		}
		return r;
	}
 
	function createObjParam(el, pName, pValue) {
		var p = document.createElement("param");
		p.setAttribute("name", pName);	
		p.setAttribute("value", pValue);
		el.appendChild(p);
	}
	
	function hasPlayerVersion(rv) {
		return (ua.playerVersion[0] > rv[0] || (ua.playerVersion[0] == rv[0] && ua.playerVersion[1] > rv[1]) || (ua.playerVersion[0] == rv[0] && ua.playerVersion[1] == rv[1] && ua.playerVersion[2] >= rv[2])) ? true : false;
	}
	
	/* Cross-browser dynamic CSS creation
		- Based on Bobby van der Sluis' solution: http://www.bobbyvandersluis.com/articles/dynamicCSS.php
	*/	
	function createCSS(sel, decl) {
		if (ua.ie && ua.mac) {
			return;
		}
		var h = document.getElementsByTagName("head")[0], s = document.createElement("style");
		s.setAttribute("type", "text/css");
		s.setAttribute("media", "screen");
		if (!(ua.ie && ua.win) && typeof document.createTextNode != UNDEF) {
			s.appendChild(document.createTextNode(sel + " {" + decl + "}"));
		}
		h.appendChild(s);
		if (ua.ie && ua.win && typeof document.styleSheets != UNDEF && document.styleSheets.length > 0) {
			var ls = document.styleSheets[document.styleSheets.length - 1];
			if (typeof ls.addRule == OBJECT) {
				ls.addRule(sel, decl);
			}
		}
	}
	
	return {
		/* Public API
			- Reference: http://code.google.com/p/swfobject/wiki/SWFObject_2_0_documentation
		*/ 
		registerObject: function(objectIdStr, swfVersionStr, xiSwfUrlStr) {
			if (!ua.w3cdom || !objectIdStr || !swfVersionStr) {
				return;
			}
			var regObj = {};
			regObj.id = objectIdStr;
			var v = swfVersionStr.split(".");
			regObj.swfVersion = [parseInt(v[0], 10), parseInt(v[1], 10), parseInt(v[2], 10)];
			regObj.expressInstall = xiSwfUrlStr ? xiSwfUrlStr : false;
			regObjArr[regObjArr.length] = regObj;
			createCSS("#" + objectIdStr, CSS_HIDDEN);
		},
		
		getObjectById: function(objectIdStr) {
			var r = null;
			if (ua.w3cdom && isDomLoaded) {
				var o = document.getElementById(objectIdStr);
				if (o) {
					var n = o.getElementsByTagName(OBJECT)[0];
					if (!n || (n && typeof o.SetVariable != UNDEF)) {
				    	r = o;
					}
					else if (typeof n.SetVariable != UNDEF) {
						r = n;
					}
				}
			}
			return r;
		},
		
		embedSWF: function(swfUrlStr, replaceElemIdStr, widthStr, heightStr, swfVersionStr, xiSwfUrlStr, flashvarsObj, parObj, attObj) {
			if (!ua.w3cdom || !swfUrlStr || !replaceElemIdStr || !widthStr || !heightStr || !swfVersionStr) {
				return;
			}
			widthStr += ""; // Auto-convert to string to make it idiot proof
			heightStr += "";
			if (hasPlayerVersion(swfVersionStr.split("."))) {
				createCSS("#" + replaceElemIdStr, CSS_HIDDEN);
				var att = (typeof attObj == OBJECT) ? attObj : {};
				att.data = swfUrlStr;
				att.width = widthStr;
				att.height = heightStr;
				var par = (typeof parObj == OBJECT) ? parObj : {};
				if (typeof flashvarsObj == OBJECT) {
					for (var i in flashvarsObj) {
						if (flashvarsObj[i] != Object.prototype[i]) { // Filter out prototype additions from other potential libraries
							if (typeof par.flashvars != UNDEF) {
								par.flashvars += "&" + i + "=" + flashvarsObj[i];
							}
							else {
								par.flashvars = i + "=" + flashvarsObj[i];
							}
						}
					}
				}
				addDomLoadEvent(function() {
					createSWF(att, par, replaceElemIdStr);
					createCSS("#" + replaceElemIdStr, CSS_VISIBLE);
				});
			}
			else if (xiSwfUrlStr && !isExpressInstallActive && hasPlayerVersion([6,0,65]) && (ua.win || ua.mac)) {
				createCSS("#" + replaceElemIdStr, CSS_HIDDEN);
				addDomLoadEvent(function() {
					var regObj = {};
					regObj.id = regObj.altContentId = replaceElemIdStr;
					regObj.width = widthStr;
					regObj.height = heightStr;
					regObj.expressInstall = xiSwfUrlStr;
					showExpressInstall(regObj);
					createCSS("#" + replaceElemIdStr, CSS_VISIBLE);
				});
			}
		},
		
		getFlashPlayerVersion: function() {
			return { major:ua.playerVersion[0], minor:ua.playerVersion[1], release:ua.playerVersion[2] };
		},
		
		hasFlashPlayerVersion: function(versionStr) {
			return hasPlayerVersion(versionStr.split("."));
		},
		
		createSWF: function(attObj, parObj, replaceElemIdStr) {
			if (ua.w3cdom && isDomLoaded) {
				return createSWF(attObj, parObj, replaceElemIdStr);
			}
			else {
				return undefined;
			}
		},
		
		createCSS: function(sel, decl) {
			if (ua.w3cdom) {
				createCSS(sel, decl);
			}
		},
		
		addDomLoadEvent:addDomLoadEvent,
		
		addLoadEvent:addLoadEvent,
		
		getQueryParamValue: function(param) {
			var q = document.location.search || document.location.hash;
			if (param == null) {
				return q;
			}
		 	if(q) {
				var pairs = q.substring(1).split("&");
				for (var i = 0; i < pairs.length; i++) {
					if (pairs[i].substring(0, pairs[i].indexOf("=")) == param) {
						return pairs[i].substring((pairs[i].indexOf("=") + 1));
					}
				}
			}
			return "";
		},
		
		// For internal usage only
		expressInstallCallback: function() {
			if (isExpressInstallActive && storedAltContent) {
				var obj = document.getElementById(EXPRESS_INSTALL_ID);
				if (obj) {
					obj.parentNode.replaceChild(storedAltContent, obj);
					storedAltContent = null;
					isExpressInstallActive = false;
				}
			} 
		}
		
	};
 
}();
 
 
 
 
 
 
 
 
 
 
 
 
 
// Set slideShowSpeed (milliseconds)
var slideShowSpeed = 15000;
 
// Duration of crossfade (seconds)
var crossFadeDuration = 9;
 
var pics = new Array();
pics[0] = "mirr.jpg";
pics[1] = "pizza.jpg";
pics[2] = "securn.jpg";
pics[3] = "serr.jpg";
 
var divIDs = new Array();
divIDs[0] = "div_1";
divIDs[1] = "div_2";
divIDs[2] = "div_3";
divIDs[3] = "div_4";
 
var ytURLs = new Array();
ytURLs[0] = "http://www.youtube.com/v/3DtL0-Gd39gvs&rel=0";
ytURLs[1] = "http://www.youtube.com/v/3DtL0-Gd39gvs&rel=0";
ytURLs[2] = "http://www.youtube.com/v/3DtL0-Gd39gvs&rel=0";
ytURLs[3] = "http://www.youtube.com/v/3DtL0-Gd39gvs&rel=0";
 
var curPic = -1;
var nextPic = 0;
var numPics = pics.length;
var continueSlideShow = true;
var slideTimer;
 
var preLoad = new Array()
for (i=0; i<numPics; i++){
   preLoad[i] = new Image();
   preLoad[i].src = pics[i];
}
 
function loadYTVideos()
{
  var divLen = divIDs.length;
  var ytLen = ytURLs.length;
  if (divLen >= ytLen)
  {
    for (i=0; i<ytLen; i++)
    {
      ytDIVID = divIDs[i] + "_yt";
      videoURL = ytURLs[i] + "&amp;border=0&amp;enablejsapi=1&amp;playerapiid=" + ytDIVID;
      var params = {allowScriptAccess: "always"};
      var atts = {id: ytDIVID};
      swfobject.embedSWF(videoURL, ytDIVID, "300", "250", "8", null, null, params, atts);
    }
  }
  else
    alert("Error not enough DIVs to hold videos");
}
 
function onYouTubePlayerReady(playerId)
{
  var ytplayer = null;
  
  if (document.getElementById)
    ytplayer = document.getElementById(playerId);
  else if (document.all)
    ytplayer = document.all(playerId);
  
  if (ytplayer)
  {
    ytplayer.addEventListener("onStateChange", "onytplayerStateChange");
 
    if (document.getElementById)
      ytplayer.setAttribute("isReady", "true");
    else if (document.all)
      ytplayer.isReady = "true";
  }
}
 
function onytplayerStateChange(newState)
{
  switch (newState)
  {
    case 0:
    case 2:
      // Video ended or paused
      continueSlideShow = true;
      break;
    case 1:
    case 3:
      // Video buffering or playing
      continueSlideShow = false;
      break;
  }
}
 
 
function runSlideShow()
{
  if (!continueSlideShow)
  {
    // Slide show is stopped because video is playing try again in 5 second
    clearTimeout(slideTimer);
    slideTimer = setTimeout('runSlideShow()', 5000);
    return;
  }
 
  if (document.all)
  {
    // Set blend transition for IE
    document.getElementById('SlideShow').style.filter = 'blendTrans(duration=crossFadeDuration)';
    document.getElementById('SlideShow').filters.blendTrans.Apply();
  }
 
  // Set background image
  if (document.getElementById)
    document.getElementById('SlideShow').background = preLoad[nextPic].src;
  else
    document.all['SlideShow'].background=preLoad[nextPic].src;
 
  // Play blend transition for IE
  if (document.all)
    document.getElementById('SlideShow').filters.blendTrans.Play();
 
  // Show new DIV
  if (document.getElementById)
    document.getElementById(divIDs[nextPic]).style.display = 'inline';
  else
    document.all(divIDs[nextPic]).style.display = 'inline';
 
  // Hide last DIV
  if (curPic != -1)
  {
    if (document.getElementById)
      document.getElementById(divIDs[curPic]).style.display = 'none';
    else
      document.all(divIDs[curPic]).style.display = 'none';
  }
 
  // Increment current/next picture number
  curPic = nextPic;
  nextPic += 1;
  if (nextPic > (numPics-1))
    nextPic = 0;
 
  // Set timer for next transition
  slideTimer = setTimeout('runSlideShow()', slideShowSpeed);
}
 
function nextSlide()
{
  // Stop current timer from executing
  clearTimeout(slideTimer);
 
  // Pause playing video
  pauseAll();
 
  // Reset slide show continuation variable
  continueSlideShow = true;
 
  // Advance the slide
  runSlideShow();
 
  // Stop the slide show
  clearTimeout(slideTimer);
  continueSlideShow = false;
}
 
function prevSlide()
{
  // Stop current timer from executing
  clearTimeout(slideTimer);
 
  // Pause playing video
  pauseAll();
 
  // Reset slide show continuation variable
  continueSlideShow = true;
 
  // Reset slide #
  if (curPic > 0)
    nextPic = curPic-1;
  else
    nextPic = numPics-1;
 
  // Advance the slide
  runSlideShow();
 
  // Stop the slide show
  clearTimeout(slideTimer);
  continueSlideShow = false;
}
 
 
function pauseAll()
{
  var ytLen = ytURLs.length;
  for (i=0; i<ytLen; i++)
  {
    var isReady = false;
    var ytplayer = null;
    if (document.getElementById)
    {
      ytplayer = document.getElementById(divIDs[i] + "_yt");
      if (ytplayer && ytplayer.getAttribute("isReady") == "true")
        isReady = true;
    }
    else if (document.all)
    {
      ytplayer = document.all(divIDs[i] + "_yt");
      if (ytplayer && ytplayer.isReady == "true")
        isReady = true;
    }
 
    if (ytplayer && isReady)
    {
      if (ytplayer.getPlayerState)
      {
        var playerState = ytplayer.getPlayerState();
        if (playerState == 1 || playerState == 3)
          ytplayer.pauseVideo();
      }
    }
  }
}
 

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LVL 8

Accepted Solution

by:
eszaq earned 500 total points
ID: 22742337
Video is quite heavy-duty thing. I just would not embed too many on the page. And your javascript... No matter what is displayed at the moment, still all of them need to be loaded first. Just like with image slide show - all the images are loaded before javascript slideshow starts.

And... display:none? It is not going to speed anything up. It will only prevent users from seeing it. Still will take time to load just try as a test to turn off styles in your browser and view a page where you have something with {display:none}  Element will show up because it is in HTML.

Why dont you want to use tumbnails for your slideshow? And when tumbnail is clicked take them to the page where that youtube video will be imbedded?
0
 

Author Comment

by:Sasha-N
ID: 22743562
i thought that when the youtube is there it acts like tumbnail and do not have to
load itself...because the script there is not playint the youyube unless it being palyed manualy...

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