function showPanel(name){

    var div = $get(name);
    if (div != null) {
        div.style.display = 'block';
    }
}

function hidePanel(name){

    var div = $get(name);
    if (div != null) {
        div.style.display = 'none';
    }
}

function launchModalPopup(modalName) {
    var modalPopupExtender = $find(modalName);
   
    if (modalPopupExtender != null) {
        modalPopupExtender.show();
    }
}
function hideModalPopup(name) {
    var modalPopupExtender = $find(name);

    if (modalPopupExtender != null) {
        modalPopupExtender.hide();
    }
}

function setPopupImage(imageId, imageUrl) {
    var img = $get(imageId);

    if (img != null) {
        img.src = imageUrl;
    }
}