/*****

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=new Array(), pause=false;


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

		imgs[lv] = new Array();
		imgs[lv] = d.getElementById(imgid).getElementsByTagName("img");
		for(i=1;i<imgs[lv].length;i++) imgs[lv][i].xOpacity = 0;
		imgs[lv][0].style.display = "block";
		imgs[lv][0].xOpacity = .99;
	
		setTimeout('so_xfade('+lv+')',1 + (3000 * lv));

}

function so_xfade(lv2) {
	if (current[lv2] == undefined)
		current[lv2] = 0;
		
	cOpacity = imgs[lv2][current[lv2]].xOpacity;
	nIndex = imgs[lv2][current[lv2]+1]?current[lv2]+1:0;

	nOpacity = imgs[lv2][nIndex].xOpacity;
	
	cOpacity-=.05; 
	nOpacity+=.05;
	
	imgs[lv2][nIndex].style.display = "block";
	imgs[lv2][current[lv2]].xOpacity = cOpacity;
	imgs[lv2][nIndex].xOpacity = nOpacity;
	
	setOpacity(imgs[lv2][current[lv2]]); 
	setOpacity(imgs[lv2][nIndex]);
	
	if(cOpacity<=0) {
		imgs[lv2][current[lv2]].style.display = "none";
		current[lv2] = nIndex;
		setTimeout('so_xfade('+lv2+')',3000);
	} else {
		setTimeout('so_xfade('+lv2+')',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) + ")";
	}
	
}