function setupBG() {
/*
    var bg =document.getElementById('bg');
    bg.style.height =  document.documentElement.clientHeight+ 'px';

    var log =document.getElementById('main');
    var mT =(document.documentElement.clientHeight-360)/2;
    if (mT > 0){
        log.style.marginTop = mT+'px';
    } else {
        log.style.marginTop = '0px';
    }
    */
}

function setupBGLogout() {
  /*  var bg =document.getElementById('bg');
    bg.style.height =  document.documentElement.clientHeight+ 'px';
    */
}

function passit(ip){
    if (ip.value == 'Password'){
        ip.value = '';
    }
}

function clear_username(ip){
    if (ip.value == 'Username'){
        ip.value = '';
    }
}

function pass_black(){
    var pass=document.getElementById("password-field");
    //alert(pass.value);
    if (pass.value!='Password')
        pass.style.color="black";

    

}