UpdateProgress

 < asp : UpdateProgress runat = " server " ID="updateProgressPopup" DisplayAfter="0">
           
               

                   

                        < img alt = " " 

src="../../Styles/img/loader.gif"
title="Elaboration In Progress.....   " />

                   

               
            < / ProgressTemplate >
        < /  asp  :   UpdateProgress>




        < asp : Update Panel ID = " upPopupMessage " runat  = " server" UpdateMode="Conditional">
            <
ContentTemplate>
                <
asp:Button ID  =    "Button1" runat="server" Text="Button" />
            </
ContentTemplate>
        < / asp : UpdatePanel>



.modal
{ 

    position:fixed;

    z-index:1001;

    height:100%;

    width:100%;

    top:0;

    background-color:Black;
   
    filter:alpha(opacity=60);

    opacity:0.6;

    -moz-opacity:0.8;

    left:0;
}

.centerLoader
{

    z-index: 1000;

    margin: 300px auto;

    padding: 10px;

    width: 130px;

    background-color: White;

    border-radius: 10px;

    filter: alpha(opacity=100);

    opacity: 1.0;

    -moz-opacity: 1;
}

.center img
{

    height: 128px;

    width: 128px;
}