.ui-dialog .ui-dialog-titlebar {
    background-color: #999999;
    background-image :none;
    color: #FFFFFF;
    font-size: 12px;
    font-weight: bold;
    line-height: 20px;
    padding: .4em 1em; 
    position: relative;
    z-index: 1;
}

.ui-dialog .ui-dialog-buttonpane {
    margin-bottom: 8px;
    right: 12px;
    text-align: right;
    width: 100%;
    border-width: 0px;
}
.ui-dialog .ui-dialog-buttonpane button {
    background-image: url("../../images/back_button_b.jpg");
    border: 1px none #666666;
    color: #FFFFFF;
    height: 24px;
    margin: 4px;
    width: 96px;
}

.ui-dialog .ui-dialog-titlebar-close {
    background: url("../../images/close.png") no-repeat scroll 0 0 transparent;
    height: 16px;
    position: absolute;
    right: 5px;
    width: 16px;
}
.ui-dialog .ui-dialog-titlebar-close span {
    display: none;
}