/*****

Image Cross Fade Redux
Version 1.0
Last revision: 02.15.2006
steve@slayeroffice.com

Please leave this notice intact. 

Rewrite of old code found here: http://slayeroffice.com/code/imageCrossFade/index.html


*****/


window.addEventListener?window.addEventListener("load",so_init,false):window.attachEvent("onload",so_init);

var d=document, imgs = new Array(), zInterval = null, current=0, pause=false;
var timeout=8000;


function so_init() {
	if(!d.getElementById || !d.createElement)return;

	imgs = d.getElementById("imageContainer").getElementsByTagName("img");
	for (i = 1; i < imgs.length; i++) 
		imgs[i].xOpacity = 0;

	imgs[0].style.display = "block";
	imgs[0].xOpacity = .99;

	MarkCurrent(0);	
	setTimeout(so_xfade,timeout);
}

function so_xfade() {
	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;

	nOpacity = imgs[nIndex].xOpacity;

	// On first fade call, change current marker
	if(cOpacity > 0.95)
		MarkCurrent(nIndex);
	
	cOpacity-=.05; 
	nOpacity+=.05;
	
	imgs[nIndex].style.display = "block";
	imgs[current].xOpacity = cOpacity;
	imgs[nIndex].xOpacity = nOpacity;
	
	setOpacity(imgs[current]); 
	setOpacity(imgs[nIndex]);


	if (cOpacity <= 0) {
		imgs[current].style.display = "none";
		
		current = nIndex;
		setTimeout(so_xfade,timeout);
	} 
	else 
	{
		setTimeout(so_xfade,50);
	}
	
	function setOpacity(obj) 
	{
		if(obj.xOpacity>.99) 
		{
			obj.xOpacity = .99;
			return;
		}
		obj.style.opacity = obj.xOpacity;
		obj.style.MozOpacity = obj.xOpacity;
		obj.style.filter = "alpha(opacity=" + (obj.xOpacity*100) + ")";
	}

}

function MarkCurrent(index)
{
	var marked = "red";
	var normal = "#564b47";
	
	var currImgFile = imgs[index].src;
	if (currImgFile.match("A5")) 
	{
		document.getElementById("A5ProdName").style.color = marked;
		document.getElementById("DVProdName").style.color = normal;
		document.getElementById("R4ProdName").style.color = normal;
		document.getElementById("A5ProdDescr").style.color = marked;
		document.getElementById("DVProdDescr").style.color = normal;
		document.getElementById("R4ProdDescr").style.color = normal;
	}
	if (currImgFile.match("DV")) 
	{
		document.getElementById("DVProdName").style.color = marked;
		document.getElementById("A5ProdName").style.color = normal;
		document.getElementById("R4ProdName").style.color = normal;
		document.getElementById("DVProdDescr").style.color = marked;
		document.getElementById("A5ProdDescr").style.color = normal;
		document.getElementById("R4ProdDescr").style.color = normal;
	}
	if (currImgFile.match("R4")) 
	{
		document.getElementById("R4ProdName").style.color = marked;
		document.getElementById("A5ProdName").style.color = normal;
		document.getElementById("DVProdName").style.color = normal;
		document.getElementById("R4ProdDescr").style.color = marked;
		document.getElementById("A5ProdDescr").style.color = normal;
		document.getElementById("DVProdDescr").style.color = normal;
	}

}