var currentHeadshot = null;

function headshotOver(source) {
    var imageSrc = source.src;
    if((imageSrc.indexOf('_off') > 0) && (imageSrc.indexOf(currentHeadshot) < 0)) {
        imageSrc = imageSrc.replace('_off','_on');
        source.src = imageSrc;
    }
}

function headshotOut(source) {
    var imageSrc = source.src;
    if((imageSrc.indexOf('_on') > 0) && (imageSrc.indexOf(currentHeadshot) < 0)) {
        imageSrc = imageSrc.replace('_on','_off');
        source.src = imageSrc;
    }
}

function headshotClick(source) {
    var oldHeadshot = document.getElementById(currentHeadshot);
    var oldBio = document.getElementById(currentHeadshot+'Bio');
    if (oldHeadshot != null) {
        oldBio.style.display = 'none';
        oldHeadshot.className = 'off';
        oldHeadshot.src = oldHeadshot.src.replace('_on','_off');
    }
    else {
        document.getElementById('defaultBio').style.display = 'none';
    }
    if(source.className.indexOf('on') < 0) {
        document.getElementById(source.id+'Bio').style.display='block';
        source.className = 'on';
        source.src = source.src.replace('_off','_on');
    }
    currentHeadshot = source.id;
}

imgArray = new Array("botts","bryant","byrd-marrow","dunn","elashvili","janzen","kaczorowska","mcgonnell","mizrahi","ostrowksi","primis","roe","saebo","sato","sirota","soldiviero");

for (i=0; i<imgArray.length; i++) {
    eval("img" + i + " = new Image(); img" + i + ".src = \"common/imgs/fellows/" + imgArray[i] + "_on.jpg\";");
}