/* css for loading page bar */
.armodal {
    display:    none;
    position:   fixed;
    z-index:    1000;
    top:        0;
    left:       0;
    height:     100%;
    width:      100%;
    background: rgba( 255, 255, 255, .8 ) 
                url('http://i.stack.imgur.com/FhHRx.gif')  
                50% 50% 
                no-repeat;
}

body.arloading {
    overflow: hidden;   
}

body.arloading .armodal {
    display: block;
}