function login(){
  var mail = document.getElementById("mail").value;
  var password = document.getElementById("password").value;

        $.ajax({
            type: 'POST',
            url: '../controller/admin_login.php',
            data: {
                'function': 'login',
                'mail': mail,
                'password': password
            },
            success: function(result) { //we got the response
              if(result!=''){
                var a = result.split('|***|');
                if(a[1]=="success"){
                  document.getElementById("mail").value ="";
                  document.getElementById("password").value ="";
                  $('#msg').show().delay(1000).fadeOut(500);
                  $('#msg').html(a[0]);
                  $(document).ajaxStop(function(){
				      setTimeout(() => {  window.location = "startseite.php"; }, 1000);
                  });

                }else{
                  $('#msg').show().delay(10000).fadeOut(500);
                  $('#msg').html(a[0]);
			    }
              }
            },
            error: function(xhr, status, exception) {
                console.log(xhr);
            }
        });
}