// galeria.js: shared JavaScript for Galeria de la Raza archive site

var debug = false;

// -----------------------------------------------------------------------------------
// BrowserCheck Object
// provides most commonly needed browser checking variables
// 19990326
// Copyright (C) 1999 Dan Steinman
// Distributed under the terms of the GNU Library General Public License
// Available at http://www.dansteinman.com/dynapi/
function BrowserCheck() {
    var agt=navigator.userAgent.toLowerCase(); 
	var b = navigator.appName
	if (b=="Netscape") this.b = "ns"
	else if (b=="Microsoft Internet Explorer") this.b = "ie"
	else this.b = b
	this.v = parseInt(navigator.appVersion)
    this.mac = (agt.indexOf("mac")!=-1);
	this.win = (agt.indexOf("win")!=-1);
    this.ns = (this.b=="ns" && this.v>=4)
	this.ns4 = (this.b=="ns" && this.v==4)
	this.ns5 = (this.b=="ns" && this.v==5)
	this.ie = (this.b=="ie" && this.v>=4)
	this.ie4 = (navigator.userAgent.indexOf('MSIE 4')>0)
	this.ie5 = (navigator.userAgent.indexOf('MSIE 5')>0)
	this.ie55 = (navigator.userAgent.indexOf('MSIE 5.5')>0)
	this.dom = (this.ie || (this.b=="ns" && this.v>=5));
	if (this.ie5) this.v = 5
	this.min = (this.ns||this.ie);
}

// automatically create the "is" object
var is = new BrowserCheck()
// end BrowserCheck Object;

// -----------------------------------------------------------------------------------
// Functions from Fireworks to handle rollovers

// function that displays status bar message
var showMsg = navigator.userAgent != "Mozilla/4.0 (compatible; MSIE 4.0; Mac_PowerPC)";

function di(id,name){
  if (document.images) {document.images[id].src=eval(name+".src"); }
}

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_nbGroup(event, grpName) { //v3.0
  var i,img,nbArr,args=MM_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = MM_findObj(args[2])) != null && !img.MM_init) {
      img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
        if (!img.MM_up) img.MM_up = img.src;
        img.src = img.MM_dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.MM_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : args[i+1];
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.MM_nbOver.length; i++) {
      img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up; }
  } else if (event == "down") {
    if ((nbArr = document[grpName]) != null)
      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = args[i+1];
      nbArr[nbArr.length] = img;
  } }
}

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_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];}
}

function MM_swapImagePerm() { //v3.0
  var i,x,a=MM_swapImagePerm.arguments; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){ x.src=a[i+2];}
}


// for handling popup menus
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  var url=selObj.options[selObj.selectedIndex].value;
  if (url.length > 0) eval(targ+".location='"+url+"'");
  if (restore) selObj.selectedIndex=0;
}

function MM_jumpMenuGo(selName,targ,restore){ //v3.0
  var selObj = MM_findObj(selName); if (selObj) MM_jumpMenu(targ,selObj,restore);
  return false;
}

function MM_reloadPage(init) {  //reloads the window if Nav4 resized
  if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
  else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}


// -----------------------------------------------------------------------------------
// returns a div/layer object given its ID.  Returns direct handle to
// object even on Netscape.
function getDocElem(doc, id)
{
	if (is.ie)
		return doc.all(id)
	else if (is.ns5)
		return doc.getElementById(id);
	else
		return eval("doc." + id);
}


// sets the text contents of an container object (probably a DIV/LAYER)
function gdlrSetText(id, newText)
{
	elem =  getDocElem(document, id);
	if (elem)
	{
		if (is.dom)
		{
			if (elem.innerHTML != newText)
				elem.innerHTML = newText;
		}
		else
		{
			// open document of layer and rewrite text
			elem.document.write(newText);
			elem.document.close();
		}
	}
}

function gdlrWriteTextContainer(id, str)
{
	// dynamic text not implemented for Netscape 4.x, so we don't have to put it
	// in a layer, which would normally be required.
	document.writeln('<font size=5><span ID="' + id + '">' + str + '</span></font>');
}


function gdlrGetCount()
{
	var now = new Date();
	var seconds = (now.getHours() * 3600) + (now.getMinutes() * 60) + now.getSeconds();	
	return Math.floor((6575 * seconds) / (60 * 60 * 24));
}

function gdlrUpdateCount()
{
	if (is.dom)
		gdlrSetText("aidscount", gdlrGetCount());
}


// default configuration for TinyMCE HTML editor
// see http://tinymce.moxiecode.com/ for more info
function gdlrInitTinyMCE() {
	tinyMCE.init({
		mode : "textareas",
		plugins: "paste",
		relative_urls : false,
		theme : "advanced",
		theme_advanced_buttons1 : "pastetext,pasteword,undo,redo,separator,bold,italic,underline,formatselect,fontsizeselect,forecolor,separator,link,unlink,separator,indent,outdent,separator,bullist,numlist",
		theme_advanced_buttons2 : "",
		theme_advanced_buttons3 : "",
		theme_advanced_blockformats : "p,div,h1,h2,h3,h4,h5,h6,blockquote",
		theme_advanced_toolbar_location : "top",
		theme_advanced_toolbar_align : "left",
		theme_advanced_statusbar_location : "none",
		extended_valid_elements : "a[name|href|target|title],img[class|src|border=0|alt|title|hspace|vspace|width|height|align|name],hr[class|width|size|noshade],font[face|size|color|style],span[class|align|style]"
		});
}



// returns the path to the root folder of the web site
var hasCustomRootPath = 0;
function getRootPath()
{
	if (hasCustomRootPath)
		return customRootPath;
		
	if (debug)
   		return "/test/galeria/";
   	else
   		return "/";
}


// should be called by the onLoad handler
// individual pages can set the pageInit variable to execute a custom onLoad function.
var pageInit = 0;
function gdlrInit()
{
	// preload nav bar rollover images
	var imagepath = getRootPath() + "eng/exhibits/archive/graphics/";
	MM_preloadImages(imagepath+'back_over.gif',imagepath+'info_over.gif',imagepath+'artist_over.gif',imagepath+'year_over.gif',imagepath+'home_over.gif');
	if (pageInit)
		eval(pageInit);
}