function popUp(URL) {

    {
        day = new Date();
        id = day.getTime();


        var isLoaded = document.getElementById("ctl00_IsMediaLoaded").value;

        if (isLoaded == "N") 
        {
            eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,     width=200,height=100');");
        }
        

       // var isLoaded2 = $get('<%= IsMediaLoaded.ClientID %>').value;


        //alert(isLoaded);


    }

}