function show(object) {
    if (document.getElementById && document.getElementById(object) != null)
         node = document.getElementById(object).style.display='block';
    else if (document.layers && document.layers[object] != null)
        document.layers[object].display = 'block';
    else if (document.all)
        document.all[object].style.display = 'block';    
}

function hide(object) {
    if (document.getElementById && document.getElementById(object) != null)
         node = document.getElementById(object).style.display='none';
    else if (document.layers && document.layers[object] != null)
        document.layers[object].display = 'none';
    else if (document.all)
         document.all[object].style.display = 'none';
}

function swapImg(imgIndex) {

  var imgSrc = thumbs[imgIndex];
  imgSrc = 'http://66.39.47.64/' + tourDir + 'thumbs/' + imgSrc + '_medium.jpg';	
  // only set the image src if we're not already displaying the specified image.
  if (document.vtpic.src.indexOf(imgSrc) == -1) {
    shownImg = imgSrc;    
    document.vtpic.src=imgSrc;
    slideshow_index = imgIndex;
  }
  hide('panCell');
  show('imgCell');  
}

// called when you click on a thumbnail. stops the slideshow and swaps out the image 
function swapThumb(img) {
  slideshow_stop();
  swapImg(thumbToIndex[img]);
}

// some slideshow functions and variables
var slideshow_on = false;
var slideshow_index = 0;
var slideshow_speed = 5000;

function slideshow_start() { 
  slideshow_on = true;
  //setTimeout('slideshow_go()',slideshow_speed);  
  slideshow_go();
}

function slideshow_go() {
  //alert('slideshow next');
  if (slideshow_on) {
    // get next image
    slideshow_index = slideshow_index + 1;
    if (slideshow_index == thumbs.length) {
      slideshow_index = 0;
    }    
    // change out the image
    swapImg(slideshow_index);
    setTimeout('slideshow_go()',slideshow_speed);
  }
  
}

function slideshow_stop() {
  slideshow_on = false;
}

// stops the slideshow and loads the next image
function slideshow_next() {
  slideshow_stop();
  slideshow_index = slideshow_index + 1;
  if (slideshow_index == thumbs.length) {
    slideshow_index = 0;
  }    
  // change out the image
  swapImg(slideshow_index);  
}

// stops the slideshow and loads the previous image
function slideshow_previous() {
  slideshow_stop();
  slideshow_index = slideshow_index - 1;
  if (slideshow_index == -1) {
    slideshow_index = thumbs.length -1;
  }    
  // change out the image
  swapImg(slideshow_index);  
}

var Sound = new Object();
Sound.play = function Sound_play(audio) {
	var src = 'http://www.floorplanhost.com/' + tourDir + 'sounds/' + audio + '.wav';
    if (!src) return false;
        this.stop();
        var elm;
     if (typeof document.all != "undefined") {
       elm = document.createElement("bgsound");
       elm.src = src;
     }
     else {
       elm = document.createElement("object");
       elm.setAttribute("data",src);
       elm.setAttribute("type","audio/x-wav");
       elm.setAttribute("controller","true");
     }
     document.body.appendChild(elm);
     this.elm = elm;
     return true;
        };

Sound.stop = function Sound_stop() {
     if (this.elm) {
       this.elm.parentNode.removeChild(this.elm);
       this.elm = null;
     }
        };

//floorplan button functions
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) { //v6.0
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])?args[i+1] : img.MM_up);
      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") {
    nbArr = document[grpName];
    if (nbArr) 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])? args[i+1] : img.MM_up;
      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];}}
}