/*****

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_1 = new Array(),imgs_2 = new Array(),imgs_3 = new Array(), zInterval = null, current_1=0,current_2=0,current_3=0, pause=false;


function so_init() {
	if(!d.getElementById || !d.createElement)return;
	
	
	/*css = d.createElement("link");
	css.setAttribute("href","_assets/xfade2.css");
	css.setAttribute("rel","stylesheet");
	css.setAttribute("type","text/css");
	d.getElementsByTagName("head")[0].appendChild(css);*/
	
	
	imgs_1 = d.getElementById("large_imageContainer").getElementsByTagName("img");
	for(i=1;i<imgs_1.length;i++) imgs_1[i].xOpacity = 0;
	imgs_1[0].style.display = "block";
	imgs_1[0].xOpacity = .99;
	
	imgs_2 = d.getElementById("small_imageContainer_1").getElementsByTagName("img");
	for(i=1;i<imgs_2.length;i++) imgs_2[i].xOpacity = 0;
	imgs_2[0].style.display = "block";
	imgs_2[0].xOpacity = .99;
	
	imgs_3 = d.getElementById("small_imageContainer_2").getElementsByTagName("img");
	for(i=1;i<imgs_3.length;i++) imgs_3[i].xOpacity = 0;
	imgs_3[0].style.display = "block";
	imgs_3[0].xOpacity = .99;
	
	setTimeout(so_xfade3,3000);
	setTimeout(so_xfade1,4000);
	setTimeout(so_xfade2,5000);
	
}

function so_xfade2() {
	cOpacity2 = imgs_2[current_2].xOpacity;
	nIndex2 = imgs_2[current_2+1]?current_2+1:0;

	nOpacity2 = imgs_2[nIndex2].xOpacity;
	
	cOpacity2-=.05; 
	nOpacity2+=.05;
	
	imgs_2[nIndex2].style.display = "block";
	imgs_2[current_2].xOpacity = cOpacity2;
	imgs_2[nIndex2].xOpacity = nOpacity2;
	
	setOpacity(imgs_2[current_2]); 
	setOpacity(imgs_2[nIndex2]);
	
	if(cOpacity2<=0) {
		imgs_2[current_2].style.display = "none";
		current_2 = nIndex2;
		setTimeout(so_xfade2,5000);
	} else {
		setTimeout(so_xfade2,50);
	}
	
	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 so_xfade1() {
	cOpacity1 = imgs_1[current_1].xOpacity;
	nIndex1 = imgs_1[current_1+1]?current_1+1:0;

		nOpacity1 = imgs_1[nIndex1].xOpacity;
	
	cOpacity1-=.05; 
	nOpacity1+=.05;
	
	imgs_1[nIndex1].style.display = "block";
	imgs_1[current_1].xOpacity = cOpacity1;
	imgs_1[nIndex1].xOpacity = nOpacity1;
	
	setOpacity(imgs_1[current_1]); 
	setOpacity(imgs_1[nIndex1]);
	
	if(cOpacity1<=0) {
		imgs_1[current_1].style.display = "none";
		current_1 = nIndex1;
		setTimeout(so_xfade1,4000);
	} else {
		setTimeout(so_xfade1,50);
	}
	
	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 so_xfade3() {
	cOpacity3 = imgs_3[current_3].xOpacity;
	nIndex3 = imgs_3[current_3+1]?current_3+1:0;

	nOpacity3 = imgs_3[nIndex3].xOpacity;
	
	cOpacity3-=.05; 
	nOpacity3+=.05;
	
	imgs_3[nIndex3].style.display = "block";
	imgs_3[current_3].xOpacity = cOpacity3;
	imgs_3[nIndex3].xOpacity = nOpacity3;
	
	setOpacity(imgs_3[current_3]); 
	setOpacity(imgs_3[nIndex3]);
	
	if(cOpacity3<=0) {
		imgs_3[current_3].style.display = "none";
		current_3 = nIndex3;
		setTimeout(so_xfade3,3000);
	} else {
		setTimeout(so_xfade3,50);
	}
	
	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) + ")";
	}
	
}