/*****

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 doc=document, imgs = new Array(), zInterval = null, current=0, pause=false, nIndex = 1, pauseZoom =false, tm = null, tm2 = null,loaded = false;

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

	// DON'T FORGET TO GRAB THIS FILE AND PLACE IT ON YOUR SERVER IN THE SAME DIRECTORY AS THE JAVASCRIPT!
	// http://slayeroffice.com/code/imageCrossFade/xfade2.css
	/*
    css = doc.createElement("link");
	css.setAttribute("href","../css/xfade2.css");
	css.setAttribute("rel","stylesheet");
	css.setAttribute("type","text/css");
	doc.getElementsByTagName("head")[0].appendChild(css);
    */
	imgs = doc.getElementById("imageContainer").getElementsByTagName("div");
	for(i=1;i<imgs.length;i++) {
		imgs[i].onmouseout = function() { pause = false; };
		imgs[i].onmouseover = function() { pause = true; };
		imgs[i].xOpacity = 0;
	}
	imgs[0].style.display = "block";
	imgs[0].xOpacity = .99;
	loaded = true;
	tm = setTimeout(so_xfade,15000);
}

function so_goto_end() {
    
	if( ! loaded )
    {
        return false;
    }
    if( tm == null )
	{
	    //tm = setTimeout(so_xfade,2000);
	}
}

function so_goto(nIndexNew) {
    
    if( ! loaded )
    {
        return false;
    }
    
    if( tm != null )
    {
        //clearTimeout(tm);
        tm = null;
    }

    if( nIndex != current ) //slide en cours
    {
        imgs[nIndex].style.display = "none";
        imgs[nIndex].xOpacity = 0;
        setOpacity(imgs[nIndex]); 
    }

    if( imgs[current] != null ) {
        imgs[current].xOpacity = 0;
        imgs[current].style.display = "none";
        setOpacity(imgs[current]);
    }
    

    current = nIndexNew;
        
    if( imgs[current] != null ) {
        imgs[current].xOpacity = 0.99;
        imgs[current].style.display = "block";
        setOpacity(imgs[current]);
    }
    
    
}

function so_xfade() {

	if( pause ) {
		//setTimeout( so_xfade, 100 );
		return;
	}

	cOpacity = imgs[current].xOpacity;
	nIndex = imgs[current+1]?current+1:0;

	nOpacity = imgs[nIndex].xOpacity;
	
	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;
		tm = setTimeout(so_xfade,3000);
	} else {
		tm = 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) + ")";
}