// JavaScript Document



function slideshow(nm, mainDiv, imgArr, linkArr, pauseImage, newWindow){
	this.name = nm;
	this.imgArr = imgArr;
	this.linkArr = linkArr;
	this.curPtr = 0;
	this.curDiv = 1;
	this.paused = 0;
	this.pauseImage = pauseImage;
	this.newWindow = newWindow;
	
	var mainDv = document.getElementById(mainDiv);
	
	document.pfObj = this;
	
	document.write("<style type='text/css'>\n");
	document.write("#pf_photo1 img { visibility:hidden; }\n");
	document.write("#pf_photo1 { position:absolute; z-index: 1; }\n");
	document.write("#pf_photo2 { position:absolute; z-index: 0; }\n");
	document.write("a img {border = 0;}\n");
	document.write("</style>");
	
	this.initImages = function() {
		document.write("<scr");
		document.write("ipt type='text/javascript'>\n");
		for(var i=0; i<this.imgArr.length; i++){
			document.write("var img"+i+" = new Image();\n");
			document.write("img"+i+".src = '"+ this.imgArr[i] +"';\n");					
		}
		document.write("document.pfObj.start();\n");
		document.write("</scr");
		document.write("ipt>\n");		
	}
	
	this.start = function()
	{
		var dv1 = document.createElement("div");
				dv1.id = "pf_photo1";
				dv1.innerHTML = "<img src='"+ imgArr[0] +"' />";
				//set link
				dv1.lk = linkArr[0];				
				dv1.onclick = function(){gotoLink(this.lk)};
			
		
		var dv2 = document.createElement("div");
				dv2.id = "pf_photo2";
				
		mainDv.appendChild(dv1);
		mainDv.appendChild(dv2);		
		
	  	image1 = document.getElementById("pf_photo1").childNodes[0];
		image1.onmouseover = function(){document.pfObj.paused = 1};
		image1.onmouseout = function(){document.pfObj.paused = 0};		
		
	  	setOpacity(image1, 0);
	  	image1.style.visibility = 'visible';
	  	fadeIn("pf_photo1",0);
	}
	
	this.initImages();
}
	
function gotoLink(lnk)
{
	if(document.pfObj.newWindow == 1)
		window.open(lnk);
	else
		window.location = lnk;
}

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).childNodes[0];
    if (opacity < 100) {
			speed = (speed < 2)?2:speed;
      setOpacity(obj, opacity);
			opacityDif = Math.ceil((100-opacity)/speed);
			opacity += opacityDif;
      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
    }
	else
	{			
		if(document.pfObj.paused == 1 && document.pfObj.pauseImage == 1)
			setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);
		else
			setTimeout("swapImages()",delay*1000);			
	}
  }
}

function swapImages(){
	// increment or reset image/link counter
	if(document.pfObj.curPtr == document.pfObj.imgArr.length-1)
		document.pfObj.curPtr = 0;
	else 
		++document.pfObj.curPtr;

	// get the div to hold the new image
	var dvName	= (document.pfObj.curDiv == 1)?"pf_photo2":"pf_photo1";
	var eDivName = (document.pfObj.curDiv == 1)?"pf_photo1":"pf_photo2";
	document.pfObj.curDiv = (document.pfObj.curDiv == 1)?2:1;
	
	var tgtDiv = document.getElementById(dvName);
	var eDiv = document.getElementById(eDivName);
		
	//fill the target div
	tgtDiv.innerHTML = "<img src='"+ document.pfObj.imgArr[document.pfObj.curPtr] +"' style='visibility:hidden;' />";
	//fill the link
	tgtDiv.lk = document.pfObj.linkArr[document.pfObj.curPtr];
	tgtDiv.onclick = function(){gotoLink(tgtDiv.lk)};
	
	//move the divs around in z-index
	eDiv.style.zIndex = 0;
	tgtDiv.style.zIndex = 1;
	
	var img = tgtDiv.childNodes[0];
	img.onmouseover = function(){document.pfObj.paused = 1};
	img.onmouseout = function(){document.pfObj.paused = 0};
		
	setOpacity(img, 0);
	img.style.visibility = 'visible';
	fadeIn(tgtDiv.id,0);
}