/*****
 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;

function so_init(){
    if (!d.getElementById || !d.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 = d.createElement("link");
    css.setAttribute("href", "uca/templates/home/css/estilo.css");
    css.setAttribute("rel", "stylesheet");
    css.setAttribute("type", "text/css");
    d.getElementsByTagName("head")[0].appendChild(css);
    if (d.getElementById("imageContainer") != null) {
        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;
        
        setTimeout(so_xfade, 2000);
    }
    else {
        return false;
    }
}

function so_xfade(){
    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;
        setTimeout(so_xfade, 2000);
    }
    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) + ")";
    }
    
}