//gallery and image functions



function prevGallery() {
 if (thumbNumber <= 0) return; 
// swapImgRestore();
 thumbNumber--;
 
 
 for (var i=1; i<=5; i++) { 
   var slide = slideshowImages[thumbNumber+i-1];
   swapImage('thumb'+i, '', 'imagethumbs/'+slide[0], 1);
 }
 
// if (thumbNumber <= 1) swapImage('galleryLarrow','','images/spacer.gif',1);
// if (thumbNumber >= slideshowImages.length-4) swapImage('galleryRarrow','','images/spacer.gif',1); 

}

function nextGallery() {
 if (thumbNumber >= slideshowImages.length-5) return;
// swapImgRestore();
 thumbNumber++;

 
 for (var i=1; i<=5; i++) { 
   var slide = slideshowImages[thumbNumber+i-1];
   swapImage('thumb'+i, '', 'imagethumbs/'+slide[0], 1);
 }

// if (thumbNumber <= 1) swapImage('galleryLarrow','','images/spacer.gif',1);
// if (thumbNumber >= slideshowImages.length-4) swapImage('galleryRarrow','','images/spacer.gif',1); 
 

}
function swapImageMain(id, name, desc, target) {
	swapImage(id, '', 'spacer.gif', 1);
	 var iText = el("imageText");
 	iText.innerHTML = desc;
	var iLink = el("imageLink");
 	if (iLink) 
 	{
 		iLink.innerHTML = "<a href=" + target + " target='_blank'><img src=images/" + name + '></a>';
 		
	} else {
		 swapImage(id, '', 'images/'+name, 1);

	}
}

function galleryPick(num) {

  slideNumber=thumbNumber+num-1;
  var slide = slideshowImages[slideNumber];
  swapImageMain('slideshow', slide[0], slide[1], slide[2], 1);

}


function prevImage() {
 if (slideNumber <= 0) slideNumber=slideshowImages.length-1;
 else slideNumber--;
 
 var slide = slideshowImages[slideNumber];
  swapImageMain('slideshow', slide[0], slide[1], slide[2], 1);

}

function nextImage() {
 if (slideNumber >= slideshowImages.length-1) slideNumber=0;
 else slideNumber++;
 
 var slide = slideshowImages[slideNumber];
  swapImageMain('slideshow', slide[0], slide[1], slide[2], 1);

}





//from here generic image swap





function el(id) {
  if (document.getElementById) {
    return document.getElementById(id);
  } else if (window[id]) {
    return window[id];
  }
  return null;
}

function 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 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=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 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=findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function swapImage() { //v3.0
 

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