function swapOver(img) {
    var source = img.src;
    var prefix = source.substring(source.lastIndexOf("../App_Themes/Default/NewImages/"), source.lastIndexOf('_') + 1);
    var suffix = source.substring(source.lastIndexOf('.'));
    img.src = prefix + "b" + suffix;
}

function swapOut(img) {
    var source = img.src;
    var suffix = source.substring(source.lastIndexOf('.'));
    var prefix = source.substring(source.lastIndexOf("../App_Themes/Default/NewImages/"), source.lastIndexOf('_') + 1);
    img.src = prefix + "a" + suffix;
}
function rollOn(oSubmit) {
    oSubmit.style.backgroundImage = "url(../App_Themes/Default/NewImages/login_b.jpg)";
}
function rollOff(oSubmit) {
    oSubmit.style.backgroundImage = "url(../App_Themes/Default/NewImages/login_a.jpg)";
}
function rollIn(oSubmit) {
    oSubmit.style.backgroundImage = "url(../App_Themes/Default/NewImages/register_b.jpg)";
}
function rollOut(oSubmit) {
    oSubmit.style.backgroundImage = "url(../App_Themes/Default/NewImages/register_a.jpg)";
}
function swapIn(oSubmit) {
    oSubmit.style.backgroundImage = "url(../App_Themes/Default/NewImages/search_b.jpg)";
}
function swapOff(oSubmit) {
    oSubmit.style.backgroundImage = "url(../App_Themes/Default/NewImages/search_a.jpg)";
}

function swap1(oSubmit) {
    oSubmit.style.backgroundImage = "url(../App_Themes/Default/NewImages/submit_b.jpg)";
}

function swap2(oSubmit) {
    oSubmit.style.backgroundImage = "url(../App_Themes/Default/NewImages/submit_a.jpg)";
}

$(document).ready(function() {
    var input = $('input[placeholder]');
    $('input[placeholder]').placeholder();

    var txtuden = $(".txtuden-js");
    if (txtuden.length > 0) {
        txtuden.focus();
    }
});

if (typeof (Sys) != 'undefined') {
    var prm = Sys.WebForms.PageRequestManager.getInstance();

    prm.add_endRequest(function() {
        $('input[placeholder]').placeholder();
    });

}