function hide(object) {
  if (document.layers && document.layers[object] != null)
      document.layers[object].visibility = 'hidden';
  else if (document.all)
      document.all[object].style.visibility = 'hidden';
  else
  	  document.getElementById(object).style.visibility='hidden';
}

function rotateIMG(direction){  
  var url=document.getElementById('tradeshowIMG').src;
  strip_start = url.lastIndexOf('/images/');
  strip_end = url.length; 
  for (x in tradeshow_images){
    if(url.substring((strip_start+8), strip_end)==tradeshow_images[x]){
      direction=='next' ? x++ : x-- ;      
      if(x<0){
        x=tradeshow_images.length-1;
	  } else if (x>=tradeshow_images.length){
	    x=0;	    
	  }
	  document.getElementById('tradeshowIMG').src='/images/'+tradeshow_images[x];
	  return true;
	}
  }
}

//function to perform auto fade out
function fadeOutIMG(){
  var object = document.getElementById('changeMe').style;
  object.opacity = (timems / 100);
  object.MozOpacity = (timems / 100);
  object.KhtmlOpacity = (timems / 100);
  object.filter = "alpha(opacity=" + timems + ")";
  timems--;
  if(timems>0){
    t=setTimeout("fadeOutIMG()",10);
  }else{
    //change image
    imageiterator++;
    document.getElementById('changeMe').src=Pic[imageiterator].src;
	//check to see if there is a link for this
	if(window.Links&&Links[imageiterator]!=''){
		document.getElementById('changeMe').onclick=function(){window.open(Links[imageiterator],'_self','')};
	}	
    timems=0;
    t=setTimeout("fadeInIMG()",200);
  }
}

//perform auto fade in
function fadeInIMG(){
  var object = document.getElementById('changeMe').style;
  object.opacity = (timems / 100);
  object.MozOpacity = (timems / 100);
  object.KhtmlOpacity = (timems / 100);
  object.filter = "alpha(opacity=" + timems + ")";
  timems++;
  if(timems<100){
    t=setTimeout("fadeInIMG()",10);
  }else{
    timems=100;
    object.opacity = (timems / 100);
    object.MozOpacity = (timems / 100);
    object.KhtmlOpacity = (timems / 100);
    object.filter = "alpha(opacity=" + timems + ")";
    t=setTimeout("autorotateIMG()",4000);
  }
}

//start auto fade process
function autorotateIMG(){
  //stop looping if end of images
  if(imageiterator==totLen){
    timems=100;
	var object = document.getElementById('changeMe').style;
    object.opacity = (timems / 100);
    object.MozOpacity = (timems / 100);
    object.KhtmlOpacity = (timems / 100);
    object.filter = "alpha(opacity=" + timems + ")";
    //timems=1000;//used to jump out of loop
    imageiterator=0;
  }
  //change from in to out
  if(timems==100){
    fadeOutIMG();
  }
}