function getFileExtension(fileName) {
    var sections = fileName.split('.');
    return sections[sections.length - 1];
}

function colorBoxHelper(targetDiv, href) {
    $(targetDiv).colorbox({
        href: href,
        speed: 500,
        opacity: 0.40,
        open: true
    }, function() {
        $(targetDiv).colorbox.resize();
    });
}

function getGravatarUrl()
{
    var url = document.location.toString() ; //url
    var e_url = '' ; //edited url
    var p = 0 ; //position
    var p2 = 0 ;//position 2
    p = url.indexOf("//") ;
    e_url = url.substring(p+2) ;
    p2 = e_url.indexOf("/") ;
    var root_url = url.substring(0,p+p2+3);                    
    var avatarDefaultUrl = root_url + "Content/images/gravatar2.png";
    return avatarDefaultUrl;
}