/* browser sniffer */

function its() {
	var n = navigator;
	// string comparisons are much easier if we lowercase everything now.
	// to make indexOf() tests more compact/readable, we prepend a space 
	// to the userAgent string (to get around '-1' indexOf() comparison)
	var ua = ' ' + n.userAgent.toLowerCase();
	var pl = n.platform.toLowerCase(); // not supported in NS3.0
	var an = n.appName.toLowerCase();

	// browser version
	this.version = n.appVersion;
	
    this.nn = ua.indexOf('mozilla') > 0;

	// 'compatible' versions of mozilla aren't navigator
	if(ua.indexOf('compatible') > 0) {
		this.nn = false;
	}

	this.opera = ua.indexOf('opera') > 0;
	this.webtv = ua.indexOf('webtv') > 0;
	this.ie = ua.indexOf('msie') > 0;
	this.aol = ua.indexOf('aol') > 0;
	
	this.major = parseInt( this.version );
	this.minor = parseFloat( this.version );
	
	// platform
	this.mac = ua.indexOf('mac') > 0;
	this.mac68k = (ua.indexOf('68k') > 0 || ua.indexOf('68000') > 0);
	this.macppc = (ua.indexOf('ppc') > 0 || ua.indexOf('powerpc') > 0);

	this.win = ua.indexOf('win') > 0;
	this.win16 = (ua.indexOf('16') > 0 && ua.indexOf('win') > 0);
	this.win31 = this.win16;
	this.win95 = (ua.indexOf('95') > 0 && ua.indexOf('win') > 0);
	this.win98 = (ua.indexOf('98') > 0 && ua.indexOf('win') > 0);
	this.winnt = (ua.indexOf('nt') > 0 && ua.indexOf('win') > 0);

	this.os2 = ua.indexOf('os/2') > 0;

	this.unix = ua.indexOf("x11") > 0;

	// workarounds
	// - IE5/Mac reports itself as version 4.0
	if(this.ie && this.mac) {
		if(ua.indexOf("msie 5")) {
			this.major = 5;
			var actual_index = ua.indexOf("msie 5");
			var actual_major = ua.substring(actual_index + 5, actual_index + 8);
			this.minor = parseFloat(actual_major);
		}
	}

	return this;
}

var its = new its() // init browser sniffer

/* flash detection */

function detectFlash() {
	var vNum = 0
	var isFlash = false
	if (its.ie && its.win) {  // vbscript-based detection (BUG: need to add the scriptEngineVersion check)
		with (document) {
			writeln('<script type="text/vbscript" language="VBScript">')
			writeln('	Function vb_detectFlash()')
			writeln('		On Error Resume Next')
			writeln('		Dim vNum, i, theObject')
			writeln('		vNum = 0')
			writeln('		For i = 2 To 7 ')
			writeln('			Set theObject = CreateObject("ShockwaveFlash.ShockwaveFlash." & i)')
			writeln('			If IsObject(theObject) Then')
			writeln('				vNum = i')
			writeln('			End If')
			writeln('			theObject = null')
			writeln('		Next')
			writeln('		vb_detectFlash = vNum')
			writeln('	End Function')
			writeln('<\/scr', 'ipt>')
		}
		vNum = vb_detectFlash()
		isFlash = (vNum > 0)
	}
	else if (its.webtv) {
		isFlash = true // all versions of webtv can play flash
		vNum = 2 // some versions support Flash3 - need more info
	} else {
		if (navigator.plugins) { // all others navigator.plugins based detection
			for (var i = 0; i < navigator.plugins.length; i++) {
				var thePlugin = navigator.plugins[i]
				var name = thePlugin.name
				var desc = thePlugin.description
				if (name.indexOf('Shockwave Flash') != -1) { // flash is installed
					// check mimeTypes to see if it has been disabled (some browsers can disable plugin rendering)
					for (var j = 0; j < thePlugin.length; j++) {
						if ( (thePlugin[j].type == 'application/x-shockwave-flash') && (thePlugin[j].enabledPlugin != null) ) {
							isFlash = true
						}
					}
					if (isFlash) { // parse version info
						if (name == 'Shockwave Flash 2.0') vNum = 2
						else vNum = parseInt(desc.charAt(desc.indexOf('.')-1))
					}
				}
			}
		}
	}
	// copy values into 'is' browser detect variable
	its.flash = isFlash
	its.flashVersion = vNum
}

detectFlash()

/* cookie library */

function getCookieVal (offset) {
  var endstr = document.cookie.indexOf (";", offset);
  if (endstr == -1)
    endstr = document.cookie.length;
  return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
  var arg = name + "=";
  var alen = arg.length;
  var clen = document.cookie.length;
  var i = 0;
  while (i < clen) {
    var j = i + alen;
    if (document.cookie.substring(i, j) == arg)
      return getCookieVal (j);
    i = document.cookie.indexOf(" ", i) + 1;
    if (i == 0) break; 
  }
  return null;
}

function SetCookie (name,value,expires,path,domain,secure) {
  document.cookie = name + "=" + escape (value) +
    ((expires) ? "; expires=" + expires.toGMTString() : "") +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    ((secure) ? "; secure" : "");
}

/* netscape 4 resize bugfix */

function resizeBugfix() {
	if (document.layers) {
	   window.loadWidth = window.innerWidth
	   window.loadHeight = window.innerHeight
	   window.onresize = restore
	}
}

function restore() {
   if (window.loadWidth != window.innerWidth || window.loadHeight != window.innerHeight) {
      history.go(0) //reload page
   }
}

function NS_flattenImages (documentObj) {
	if (document.layers) {
		var me = NS_flattenImages
		if (!documentObj) {
			documentObj = window.document //top-level document is default value
		}
		/* add references to global document.images array */
		for (var i = 0; i < documentObj.images.length; i++) {
			var img = documentObj.images[i]
			if (img.name && !document.images[img.name]) {
				document.images[img.name] = img
			}
		}
		
		/* recursively search through layers for images */
		for (var i = 0; i <  documentObj.layers.length; i++) {
			me(documentObj.layers[i].document) //recurse
		}
		
	}
	return true
}

/* drop down menus */

var lastMenu = ''
var menus = ['conferenceMenu', 'speakersMenu', 'registrationMenu', 'confrcontactMenu', 'conferencesmMenu']

function showMenu(curMenu) {
	 if (curMenu != lastMenu) {
		hideLastMenu()
		show(curMenu + 'Menu')
		playMenu(curMenu)
		lastMenu = curMenu // update
		cancelBubble() 	// for ie
	}		
}

function clearMenu(id) {
	if (document.images) {
		document.images[id + 'MenuImg'].src = root + 'images/gui/spacer.gif'
	}
}

function playMenu(id) {
	if (document.images) {
		document.images[id + 'MenuImg'].src = root + 'images/gui/' + id + '_menu.gif'
	}
}

function show(id) {
	var el = xbGetElementById(id)
	var exp = 'el.' + ((document.layers) ? '' : 'style.') + "visibility = 'visible'"
	eval (exp)
}

function hide(id) {
	var el = xbGetElementById(id)
	var exp = 'el.' + ((document.layers) ? '' : 'style.') + "visibility = 'hidden'"
	eval (exp)
}

function hideLastMenu() {
	if (lastMenu) {
		hide(lastMenu + 'Menu')
		clearMenu(lastMenu)
		lastMenu = ''
	}
}

function cancelBubble() {
	if (window.event) {
		window.event.cancelBubble = true;  // explorer style
	}
}

function initMenuEventHandlers() {
	var isNN4 = (its.nn && its.major == 4)
	if (!isNN4) {
		document.onmouseover = hideLastMenu
	}
	var el
	for (i = 0; i < menus.length; i++) {
		el = xbGetElementById(menus[i])
		if (isNN4) {
			el.onmouseout = hideLastMenu
		}
		else {
			el.onmouseover = cancelBubble
		}
	}
}

/* netscape style fixes */

if (document.classes) {
	document.classes.initialHead.ALL.marginTop = '-15px'
}

/* init contact button rollover */

var contact_button_off = new Image
var contact_button_over = new Image
contact_button_off.src = root + 'images/gui/contact_button.gif'
contact_button_over.src = root + 'images/gui/contact_button_over.gif'

function initPage () {
	if ( document.layers && (document.layers.length > 0) ) {
		NS_flattenImages()
	}
	initMenuEventHandlers()
	resizeBugfix()
}

function currentYear(){
	var d = new Date();
	return d.getFullYear();
}

/* 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>
*/
var swfobject=function(){var b="undefined",Q="object",n="Shockwave Flash",p="ShockwaveFlash.ShockwaveFlash",P="application/x-shockwave-flash",m="SWFObjectExprInst",j=window,K=document,T=navigator,o=[],N=[],i=[],d=[],J,Z=null,M=null,l=null,e=false,A=false;var h=function(){var v=typeof K.getElementById!=b&&typeof K.getElementsByTagName!=b&&typeof K.createElement!=b,AC=[0,0,0],x=null;if(typeof T.plugins!=b&&typeof T.plugins[n]==Q){x=T.plugins[n].description;if(x&&!(typeof T.mimeTypes!=b&&T.mimeTypes[P]&&!T.mimeTypes[P].enabledPlugin)){x=x.replace(/^.*\s+(\S+\s+\S+$)/,"$1");AC[0]=parseInt(x.replace(/^(.*)\..*$/,"$1"),10);AC[1]=parseInt(x.replace(/^.*\.(.*)\s.*$/,"$1"),10);AC[2]=/r/.test(x)?parseInt(x.replace(/^.*r(.*)$/,"$1"),10):0}}else{if(typeof j.ActiveXObject!=b){var y=null,AB=false;try{y=new ActiveXObject(p+".7")}catch(t){try{y=new ActiveXObject(p+".6");AC=[6,0,21];y.AllowScriptAccess="always"}catch(t){if(AC[0]==6){AB=true}}if(!AB){try{y=new ActiveXObject(p)}catch(t){}}}if(!AB&&y){try{x=y.GetVariable("$version");if(x){x=x.split(" ")[1].split(",");AC=[parseInt(x[0],10),parseInt(x[1],10),parseInt(x[2],10)]}}catch(t){}}}}var AD=T.userAgent.toLowerCase(),r=T.platform.toLowerCase(),AA=/webkit/.test(AD)?parseFloat(AD.replace(/^.*webkit\/(\d+(\.\d+)?).*$/,"$1")):false,q=false,z=r?/win/.test(r):/win/.test(AD),w=r?/mac/.test(r):/mac/.test(AD);/*@cc_on q=true;@if(@_win32)z=true;@elif(@_mac)w=true;@end@*/return{w3cdom:v,pv:AC,webkit:AA,ie:q,win:z,mac:w}}();var L=function(){if(!h.w3cdom){return }f(H);if(h.ie&&h.win){try{K.write("<script id=__ie_ondomload defer=true src=//:><\/script>");J=C("__ie_ondomload");if(J){I(J,"onreadystatechange",S)}}catch(q){}}if(h.webkit&&typeof K.readyState!=b){Z=setInterval(function(){if(/loaded|complete/.test(K.readyState)){E()}},10)}if(typeof K.addEventListener!=b){K.addEventListener("DOMContentLoaded",E,null)}R(E)}();function S(){if(J.readyState=="complete"){J.parentNode.removeChild(J);E()}}function E(){if(e){return }if(h.ie&&h.win){var v=a("span");try{var u=K.getElementsByTagName("body")[0].appendChild(v);u.parentNode.removeChild(u)}catch(w){return }}e=true;if(Z){clearInterval(Z);Z=null}var q=o.length;for(var r=0;r<q;r++){o[r]()}}function f(q){if(e){q()}else{o[o.length]=q}}function R(r){if(typeof j.addEventListener!=b){j.addEventListener("load",r,false)}else{if(typeof K.addEventListener!=b){K.addEventListener("load",r,false)}else{if(typeof j.attachEvent!=b){I(j,"onload",r)}else{if(typeof j.onload=="function"){var q=j.onload;j.onload=function(){q();r()}}else{j.onload=r}}}}}function H(){var t=N.length;for(var q=0;q<t;q++){var u=N[q].id;if(h.pv[0]>0){var r=C(u);if(r){N[q].width=r.getAttribute("width")?r.getAttribute("width"):"0";N[q].height=r.getAttribute("height")?r.getAttribute("height"):"0";if(c(N[q].swfVersion)){if(h.webkit&&h.webkit<312){Y(r)}W(u,true)}else{if(N[q].expressInstall&&!A&&c("6.0.65")&&(h.win||h.mac)){k(N[q])}else{O(r)}}}}else{W(u,true)}}}function Y(t){var q=t.getElementsByTagName(Q)[0];if(q){var w=a("embed"),y=q.attributes;if(y){var v=y.length;for(var u=0;u<v;u++){if(y[u].nodeName=="DATA"){w.setAttribute("src",y[u].nodeValue)}else{w.setAttribute(y[u].nodeName,y[u].nodeValue)}}}var x=q.childNodes;if(x){var z=x.length;for(var r=0;r<z;r++){if(x[r].nodeType==1&&x[r].nodeName=="PARAM"){w.setAttribute(x[r].getAttribute("name"),x[r].getAttribute("value"))}}}t.parentNode.replaceChild(w,t)}}function k(w){A=true;var u=C(w.id);if(u){if(w.altContentId){var y=C(w.altContentId);if(y){M=y;l=w.altContentId}}else{M=G(u)}if(!(/%$/.test(w.width))&&parseInt(w.width,10)<310){w.width="310"}if(!(/%$/.test(w.height))&&parseInt(w.height,10)<137){w.height="137"}K.title=K.title.slice(0,47)+" - Flash Player Installation";var z=h.ie&&h.win?"ActiveX":"PlugIn",q=K.title,r="MMredirectURL="+j.location+"&MMplayerType="+z+"&MMdoctitle="+q,x=w.id;if(h.ie&&h.win&&u.readyState!=4){var t=a("div");x+="SWFObjectNew";t.setAttribute("id",x);u.parentNode.insertBefore(t,u);u.style.display="none";var v=function(){u.parentNode.removeChild(u)};I(j,"onload",v)}U({data:w.expressInstall,id:m,width:w.width,height:w.height},{flashvars:r},x)}}function O(t){if(h.ie&&h.win&&t.readyState!=4){var r=a("div");t.parentNode.insertBefore(r,t);r.parentNode.replaceChild(G(t),r);t.style.display="none";var q=function(){t.parentNode.removeChild(t)};I(j,"onload",q)}else{t.parentNode.replaceChild(G(t),t)}}function G(v){var u=a("div");if(h.win&&h.ie){u.innerHTML=v.innerHTML}else{var r=v.getElementsByTagName(Q)[0];if(r){var w=r.childNodes;if(w){var q=w.length;for(var t=0;t<q;t++){if(!(w[t].nodeType==1&&w[t].nodeName=="PARAM")&&!(w[t].nodeType==8)){u.appendChild(w[t].cloneNode(true))}}}}}return u}function U(AG,AE,t){var q,v=C(t);if(v){if(typeof AG.id==b){AG.id=t}if(h.ie&&h.win){var AF="";for(var AB in AG){if(AG[AB]!=Object.prototype[AB]){if(AB.toLowerCase()=="data"){AE.movie=AG[AB]}else{if(AB.toLowerCase()=="styleclass"){AF+=' class="'+AG[AB]+'"'}else{if(AB.toLowerCase()!="classid"){AF+=" "+AB+'="'+AG[AB]+'"'}}}}}var AD="";for(var AA in AE){if(AE[AA]!=Object.prototype[AA]){AD+='<param name="'+AA+'" value="'+AE[AA]+'" />'}}v.outerHTML='<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"'+AF+">"+AD+"</object>";i[i.length]=AG.id;q=C(AG.id)}else{if(h.webkit&&h.webkit<312){var AC=a("embed");AC.setAttribute("type",P);for(var z in AG){if(AG[z]!=Object.prototype[z]){if(z.toLowerCase()=="data"){AC.setAttribute("src",AG[z])}else{if(z.toLowerCase()=="styleclass"){AC.setAttribute("class",AG[z])}else{if(z.toLowerCase()!="classid"){AC.setAttribute(z,AG[z])}}}}}for(var y in AE){if(AE[y]!=Object.prototype[y]){if(y.toLowerCase()!="movie"){AC.setAttribute(y,AE[y])}}}v.parentNode.replaceChild(AC,v);q=AC}else{var u=a(Q);u.setAttribute("type",P);for(var x in AG){if(AG[x]!=Object.prototype[x]){if(x.toLowerCase()=="styleclass"){u.setAttribute("class",AG[x])}else{if(x.toLowerCase()!="classid"){u.setAttribute(x,AG[x])}}}}for(var w in AE){if(AE[w]!=Object.prototype[w]&&w.toLowerCase()!="movie"){F(u,w,AE[w])}}v.parentNode.replaceChild(u,v);q=u}}}return q}function F(t,q,r){var u=a("param");u.setAttribute("name",q);u.setAttribute("value",r);t.appendChild(u)}function X(r){var q=C(r);if(q&&(q.nodeName=="OBJECT"||q.nodeName=="EMBED")){if(h.ie&&h.win){if(q.readyState==4){B(r)}else{j.attachEvent("onload",function(){B(r)})}}else{q.parentNode.removeChild(q)}}}function B(t){var r=C(t);if(r){for(var q in r){if(typeof r[q]=="function"){r[q]=null}}r.parentNode.removeChild(r)}}function C(t){var q=null;try{q=K.getElementById(t)}catch(r){}return q}function a(q){return K.createElement(q)}function I(t,q,r){t.attachEvent(q,r);d[d.length]=[t,q,r]}function c(t){var r=h.pv,q=t.split(".");q[0]=parseInt(q[0],10);q[1]=parseInt(q[1],10)||0;q[2]=parseInt(q[2],10)||0;return(r[0]>q[0]||(r[0]==q[0]&&r[1]>q[1])||(r[0]==q[0]&&r[1]==q[1]&&r[2]>=q[2]))?true:false}function V(v,r){if(h.ie&&h.mac){return }var u=K.getElementsByTagName("head")[0],t=a("style");t.setAttribute("type","text/css");t.setAttribute("media","screen");if(!(h.ie&&h.win)&&typeof K.createTextNode!=b){t.appendChild(K.createTextNode(v+" {"+r+"}"))}u.appendChild(t);if(h.ie&&h.win&&typeof K.styleSheets!=b&&K.styleSheets.length>0){var q=K.styleSheets[K.styleSheets.length-1];if(typeof q.addRule==Q){q.addRule(v,r)}}}function W(t,q){var r=q?"visible":"hidden";if(e&&C(t)){C(t).style.visibility=r}else{V("#"+t,"visibility:"+r)}}function g(s){var r=/[\\\"<>\.;]/;var q=r.exec(s)!=null;return q?encodeURIComponent(s):s}var D=function(){if(h.ie&&h.win){window.attachEvent("onunload",function(){var w=d.length;for(var v=0;v<w;v++){d[v][0].detachEvent(d[v][1],d[v][2])}var t=i.length;for(var u=0;u<t;u++){X(i[u])}for(var r in h){h[r]=null}h=null;for(var q in swfobject){swfobject[q]=null}swfobject=null})}}();return{registerObject:function(u,q,t){if(!h.w3cdom||!u||!q){return }var r={};r.id=u;r.swfVersion=q;r.expressInstall=t?t:false;N[N.length]=r;W(u,false)},getObjectById:function(v){var q=null;if(h.w3cdom){var t=C(v);if(t){var u=t.getElementsByTagName(Q)[0];if(!u||(u&&typeof t.SetVariable!=b)){q=t}else{if(typeof u.SetVariable!=b){q=u}}}}return q},embedSWF:function(x,AE,AB,AD,q,w,r,z,AC){if(!h.w3cdom||!x||!AE||!AB||!AD||!q){return }AB+="";AD+="";if(c(q)){W(AE,false);var AA={};if(AC&&typeof AC===Q){for(var v in AC){if(AC[v]!=Object.prototype[v]){AA[v]=AC[v]}}}AA.data=x;AA.width=AB;AA.height=AD;var y={};if(z&&typeof z===Q){for(var u in z){if(z[u]!=Object.prototype[u]){y[u]=z[u]}}}if(r&&typeof r===Q){for(var t in r){if(r[t]!=Object.prototype[t]){if(typeof y.flashvars!=b){y.flashvars+="&"+t+"="+r[t]}else{y.flashvars=t+"="+r[t]}}}}f(function(){U(AA,y,AE);if(AA.id==AE){W(AE,true)}})}else{if(w&&!A&&c("6.0.65")&&(h.win||h.mac)){A=true;W(AE,false);f(function(){var AF={};AF.id=AF.altContentId=AE;AF.width=AB;AF.height=AD;AF.expressInstall=w;k(AF)})}}},getFlashPlayerVersion:function(){return{major:h.pv[0],minor:h.pv[1],release:h.pv[2]}},hasFlashPlayerVersion:c,createSWF:function(t,r,q){if(h.w3cdom){return U(t,r,q)}else{return undefined}},removeSWF:function(q){if(h.w3cdom){X(q)}},createCSS:function(r,q){if(h.w3cdom){V(r,q)}},addDomLoadEvent:f,addLoadEvent:R,getQueryParamValue:function(v){var u=K.location.search||K.location.hash;if(v==null){return g(u)}if(u){var t=u.substring(1).split("&");for(var r=0;r<t.length;r++){if(t[r].substring(0,t[r].indexOf("="))==v){return g(t[r].substring((t[r].indexOf("=")+1)))}}}return""},expressInstallCallback:function(){if(A&&M){var q=C(m);if(q){q.parentNode.replaceChild(M,q);if(l){W(l,true);if(h.ie&&h.win){M.style.display="block"}}M=null;l=null;A=false}}}}}();

window.onload = initPage