var display;
var page;

function subnav(nav) {
	thisnav = document.getElementById("nav_" + nav);
	thissubnav = document.getElementById("subnav_" + nav);
	thisicons = thisnav.getElementsByTagName("a");

	for (var i=0; i<thisicons.length; i++) {
		if (thisicons[i].className.indexOf("navicon") >= 0) {

			if (thissubnav.currentStyle) { /* IE, Opera */
				thisdisplay = thissubnav.currentStyle.display;
			}
			else { /* Firefox, Safari */
				thisdisplay = getComputedStyle(thissubnav,null).getPropertyValue('display');
			}

			if (thisdisplay == "none") {
				thissubnav.style.display = "block";
				thisicons[i].className = "navicon minus_u";
			}
			else {
				thissubnav.style.display = "none";
				thisicons[i].className = "navicon plus_n";
			}
		}
	}
}


function viewtext(id,action) {
	thisel = document.getElementById("view_" + id);
	thismorelink = document.getElementById("viewmore_" + id);
	thislesslink = document.getElementById("viewless_" + id);

	if (action == "more") {
		thisel.style.display = "block";
		thismorelink.style.display = "none";
		thislesslink.style.display = "inline";
	}
	else if (action == "less") {
		thisel.style.display = "none";
		thislesslink.style.display = "none";
		thismorelink.style.display = "inline";
	}
}


function popup(url) {
	remote = open(url, "remote", "resizable,scrollbars,width=600,height=600");
}


function mailpage() {
	mail_str = "mailto:?subject=" + document.title;
	mail_str += "&body=LINK:" + location.href;
	location.href = mail_str;
}


function getq(thisvar){
	var thisurl = window.location.href;
	var parts = thisurl.split("?");
	if (!parts[1]){
		return "";
	}
	else {
		var query = parts[1];
		var vars = query.split("&");
		var value = "";
		for (i=0;i<vars.length;i++){
			var parts = vars[i].split("=");
			if (parts[0] == thisvar){
				value = parts[1];
				break;
			}
		}
		value = unescape(value);
		value = value.replace(/\+/g," ");
		return value;
	}
}


function searchformcheck(act) {
	param_q = document.getElementById('q');
	param_oq = document.getElementById('as_oq');
	param_epq = document.getElementById('as_epq');
	param_filetype = document.getElementById('as_filetype');
	option_oq = document.getElementById('bool2');
	option_epq = document.getElementById('bool3');
	option_filetype = document.getElementById('dtype2');

	if (act == '1') {
		if (getq('dtype') == "pdf") {
			option_filetype.checked = true;
		}
		else {
			option_filetype.checked = false;
		}

		if (getq('as_oq') != "") {
			param_q.value = getq('as_oq');
		}
		else if (getq('as_epq') != "") {
			param_q.value = getq('as_epq');
		}

		if (getq('dtype') == "pdf" || getq('view') == "adv") {
			viewtext('searchoptions','more');
		}
	}
	else {
		if (option_oq.checked == true) {
			param_oq.value = param_q.value;
			param_oq.disabled = false;
//			param_q.disabled = true;
			param_q.value = "";
		}

		if (option_epq.checked == true) {
			param_epq.value = param_q.value;
			param_epq.disabled = false;
//			param_q.disabled = true;
			param_q.value = "";
		}

		if (option_filetype.checked == true) {
			param_filetype.value = option_filetype.value;
			param_filetype.disabled = false;
		}
	}
}


function createRequest() {
	var request = null;
	if (window.XMLHttpRequest) {
		request = new XMLHttpRequest();
	}
	else if (window.ActiveXObject) {
		request = new ActiveXObject("Microsoft.XMLHTTP");
	}
	return request;
	if (request == null) {
		alert("Browser does not support HTTP Request.");
	}
}

function viewct(page) {
	url = "http://www.levyinstitute.org/lib/viewcount.php?" + page;
	request = createRequest();
	request.open("GET", url, true);
	request.setRequestHeader('Content-Type', 'text/xml');
	request.onreadystatechange = getcount;
	request.send(null);
}

function getcount() {
	//if (request.readyState == 4) { // request is complete
	if (request.readyState == 2) { // request has been sent
		response = request.responseText;
	}
}



audioFiles = new Array();

var audiolinks = "";
var audioplayer = "";
var audiocaption = "";

var hasflash;

function showaudio(id,section) {
	var thisaudio = document.getElementById("audiolinks_" + id);

	var thelinks = thisaudio.getElementsByTagName("li");

	var thislink = document.getElementById("audio_" + id + "_sectionlink_" + section);
	var thissection = document.getElementById("audio_" + id + "_section_" + section);
	var thisicons = thislink.getElementsByTagName("a");

	for (var i=0; i<thelinks.length; i++) {
		if (thelinks[i].id != thislink.id) {
			var thesections = thelinks[i].getElementsByTagName("ul");
			for (var s=0; s<thesections.length; s++) {
				if (thesections[s].className == "section") {
					thesections[s].style.display = "none";
				}
			}

			var theicons = thelinks[i].getElementsByTagName("a");
			for (var c=0; c<theicons.length; c++) {
				if (theicons[c].className.indexOf("audio_navicon") >= 0) {
					theicons[c].className = "audio_navicon plus_n";
				}
			}
		}
	}

	for (var i=0; i<thisicons.length; i++) {
		if (thisicons[i].className.indexOf("audio_navicon") >= 0) {

			if (thissection.currentStyle) { /* IE, Opera */
				var thisdisplay = thissection.currentStyle.display;
			}
			else { /* Firefox, Safari */
				var thisdisplay = getComputedStyle(thissection,null).getPropertyValue('display');
			}

			if (thisdisplay == "none") {
				thissection.style.display = "block";
				thisicons[i].className = "audio_navicon minus_u";
			}
			else {
				thissection.style.display = "none";
				thisicons[i].className = "audio_navicon plus_n";
			}
		}
	}
}

function playaudio(id,file,action) {
	audiolinks = "audiolinks_"+id;
	audioplayer = "audioplayer_"+id;
	audiocaption = "audiocaption_"+id;
	filename = window['audioFilenames_' + id][file];
	linkname = window['audioLinknames_' + id][file];
	sectionname = (window['audioSectionnames_' + id][file] ? window['audioSectionnames_' + id][file] : "");
	playsection = false;

	if (hasflash == false) {
		action = "d";
	}

	if (action == "p") {
		url = "http://www.levyinstitute.org/files/audio.php?action=play&id="+id+"&file="+filename;
		url = escape(url);
		//url = "http://www.levyinstitute.org/audio/"+filename;
		document.getElementById(audiocaption).innerHTML = "<span style=\"text-decoration: blink;\"><i>Loading Audio...</i></span>";

		audiolist = document.getElementById(audiolinks);
		thislinks = audiolist.getElementsByTagName("li");
		for (var i=0; i<thislinks.length; i++) {
			if (thislinks[i].id.indexOf("_sectionlink_") >= 0) {
				var thissectionlinks = thislinks[i].getElementsByTagName("a");
				var thissectionaudios = thislinks[i].getElementsByTagName("li");
				for (var a=0; a<thissectionaudios.length; a++) {
					if (thissectionaudios[a].id == ("audio_"+id+"_"+file)) {
						playsection = true;
					}
				}
				for (var s=0; s<thissectionlinks.length; s++) {
					if (thissectionlinks[s].className.indexOf("sectionlink") >= 0) {
						if (playsection == true) {
							thissectionlinks[s].className = "sectionlink play";
						}
						else {
							thissectionlinks[s].className = "sectionlink";
						}
					}
				}
				playsection = false;
			}
			else if (thislinks[i].className.indexOf("row1") >= 0) {
				thislinks[i].className = "row1";
			}
			else if (thislinks[i].className.indexOf("row2") >= 0) {
				thislinks[i].className = "row2";
			}
		}

		document.getElementById("audio_"+id+"_"+file).className += " play";
		document.getElementById("audiocontrol_"+id).style.display = "block";
		mediael = "audiocontrol_"+id;

		AC_FL_RunContent_custom('codebase', 'http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0','width', '205','height', '27','src', 'http://www.levyinstitute.org/multimedia/google_player?autoPlay=true&audioUrl='+url, 'pluginspage', 'http://www.macromedia.com/go/getflashplayer', 'play', 'true', 'loop', 'false', 'bgcolor', '#ffffff', 'FlashVars', 'audioUrl='+url, 'quality', 'best', 'name', 'audio_flash_'+id+'_'+file, 'allowScriptAccess','sameDomain', 'movie', 'http://www.levyinstitute.org/multimedia/google_player?autoPlay=true&audioUrl='+url);

		document.getElementById(audiocaption).innerHTML = '<span class="cap1">Now Playing:</span><br /><span class="cap2">'+(sectionname ? '<i>'+sectionname+'</i><br />' : '')+linkname+'</span>';

	}
	else {
		location.href = "http://www.levyinstitute.org/files/audio.php?action=download&id="+id+"&file="+filename;
		//return;
	}

	audiolinks = "";
	audioplayer = "";
	audiocaption = "";
	url = "";
	filename = "";
	linkname = "";
	sectionname = "";
}

function checkaudio() {
	noflashmsg = 'Click on an audio link to download the clip.<br /><br /><span style="color:#C00;"><i>To play the audio clips without downloading, you must have <a href="http://www.macromedia.com/go/getflash/" target="_blank">Adobe Flash</a>, version 8 or higher.</i></span>';

	if (AC_FL_RunContent == 0 || DetectFlashVer == 0) {
		alert("This page requires AC_RunActiveContent.js.");
	}
	else {
		var hasRightVersion = DetectFlashVer(requiredMajorVersion, requiredMinorVersion, requiredRevision);
		if(hasRightVersion) {  // if we've detected an acceptable version
			// embed the flash movie
			hasflash = true;
			//end AC code
		}
		else {  // flash is too old or we can't detect the plugin
			hasflash = false;
			var alternateContent = noflashmsg;

			for (var e=0; e<audioFiles.length; e++) {
				thisaudiocaption = document.getElementById("audiocaption_" + audioFiles[e]);
				if (thisaudiocaption.className.indexOf("play") >= 0) {
					thisaudiocaption.innerHTML = alternateContent;
				}
			}
		}
	}
}



function resizecols() {
	col1 = document.getElementById('leftcolumn');
	col2 = document.getElementById('centercolumn');
	col3 = document.getElementById('rightcolumn');

	htdiff = 7; // col2 top - col3 top

	sizearr = new Array();
	sizearr.push(col1.offsetHeight);
	sizearr.push(col2.offsetHeight);
	sizearr.push(col3.offsetHeight + htdiff);

	sizearr.sort(function(a,b){return b - a})
	if (col2.offsetHeight < sizearr[0]) {
		col2divs = col2.getElementsByTagName("div");
		for (var i=(col2divs.length-1); i>=0; i--) {
			if (col2divs[i].className.indexOf("box_content") >= 0) {
				/*if (col2divs[i].currentStyle) { // IE, Opera
					thispad = col2divs[i].currentStyle.paddingBottom;
				}
				else { // Firefox, Safari
					thispad = getComputedStyle(col2divs[i],null).getPropertyValue('padding-bottom');
				}
				col2divs[i].style.paddingBottom = ((sizearr[0] - col2.offsetHeight) + thispad) +'px';*/
				//col2divs[i].style.height = (col2divs[i].offsetHeight + (sizearr[0] - col2.offsetHeight)) +'px';
				col2divs[i].style.minHeight = (col2divs[i].offsetHeight + (sizearr[0] - col2.offsetHeight)) +'px';
				break;
			}
		}
	}
}



window.onload=function() {
	if (display != "print" && display != "popup") {
		self.name = "mainwin";
		//if (self.focus) {self.focus()}

		if (page != "search" && page != "conference") {
			resizecols();
		}
	}

	checkaudio();

	if (display == print) {
		window.print();
	}
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}