body.waitLoading {overflow: hidden;} 
body.waitLoading .modalWait { display:table; }
.modalWait {
    display:    none;
    position:   fixed;
    z-index:    20001;
    top:        0;
    left:       0;
    height:     100%;
    width:      100%;
    /*background: rgba( 255, 255, 255, .2 ) 
                url('/Images/waitIndicator.gif')
                50% 50% 
                no-repeat;*/
}