var obj = new Array();
var curObj;
var xOpacity;
var i;

function fadeIn() {
    obj[0] = document.getElementById('img_ex');
    obj[1] = document.getElementById('img_bf');
    obj[2] = document.getElementById('img_el');
    obj[3] = document.getElementById('img_as');
    obj[4] = document.getElementById('img_rn');
    i = 0;
    xOpacity = 0.00;
    curObj = obj[i];
    doFadeIn();
}

function doFadeIn() {
    if (xOpacity < .99) {
        curObj.style.opacity = xOpacity;
        curObj.style.MozOpacity = xOpacity;
        curObj.style.filter = "alpha(opacity=" + (xOpacity*100) + ")";
        xOpacity+=.05;
        setTimeout("doFadeIn()",15);
    } else {
        if (i <= 4) {
            i++;
            curObj = obj[i];
            xOpacity = 0.00;
            doFadeIn();
        }
    }
}