var imagen = 0;
var started =false;
var sspaused = false;
var nimages = 5;
var myimages = new Array();



var sstimer = null;
function RotateImages(n)
{


    if (n < 1) n = nimages;
    if( n > nimages) n = 1;
    
	  if (document.getElementById)
	  {   
		    for (i=1; i<=nimages; i++)
		    {
           
           navb = document.getElementById("ssnav"+String(i));
           if (i==n)
			     {
					     navb.className="ssnumboxactive";
					 }
			     else
			     {
					     navb.className="ssnumboxinactive";
			     }
		    }
		}

if (started) {
		fadeOut('slideshow'+imagen, 100);
    fadeIn('slideshow'+n, 0);
		fadeOut('ssdesc'+imagen, 100);
    fadeIn('ssdesc'+n, 0);
    

    
    setOpacity(document.getElementById('slideshow0'),0);
}
    
    imagen=n;
    started=true;
    if (!sspaused)
    {
      clearTimeout(sstimer);
      sstimer = setTimeout('SlideShowNext()',8000);
    }
}

function SlideShowPrev()
{
  RotateImages(imagen-1)
}

function SlideShowNext()
{
  RotateImages(imagen+1);
  
}

function SlideShowPlayPause()
{
    ssbutton = document.getElementById("sspause");
    if (sspaused == false){
        clearTimeout(sstimer);
        ssbutton.parentNode.title="Play";
        ssbutton.innerHTML=">";
        sspaused = true;
    }
    else {
        ssbutton.parentNode.title="Pause";
        ssbutton.innerHTML="||";
        sspaused = false;
        SlideShowNext();
    }

}

//from http://clagnut.com/sandbox/imagefades/
function setOpacity(obj, opacity) {
  opacity = (opacity == 100)?99.999:opacity;
  
  // IE/Win
  obj.style.filter = "alpha(opacity:"+opacity+")";
  
  // Safari<1.2, Konqueror
  obj.style.KHTMLOpacity = opacity/100;
  
  // Older Mozilla and Firefox
  obj.style.MozOpacity = opacity/100;
  
  // Safari 1.2, newer Firefox and Mozilla, CSS3
  obj.style.opacity = opacity/100;
  
}

function fadeIn(objId,opacity) {
  if (document.getElementById) {
    obj = document.getElementById(objId);
    obj.style.display = 'block';
    if (opacity <= 100) {
      setOpacity(obj, opacity);
      opacity += 10;
      setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
    }
   
  }
}
// end from http://clagnut.com/sandbox/imagefades/

function fadeOut(objId,opacity)
{
  if (document.getElementById) {
    obj = document.getElementById(objId);
    if (opacity >0) {
      setOpacity(obj, opacity);
      opacity -= 10;
  
      setTimeout("fadeOut('"+objId+"',"+opacity+")", 100);
    }
    else
      obj.style.display = 'none';

  }
}