Delete all members from group *script*

deleteAll = []; deleteAll.elms =
[]; deleteAll.canClick = function
(el) { return (typeof el !=
'undefined'&& (typeof el.click !
= 'undefined'; } deleteAll.load =
function() { deleteAll.elms =
document.
getElementsByClassName
("uiPopoverButton _p uiButton
uiButtonSuppressed
uiButtonNoText"; if (i <
deleteAll.elms.length - 5 && !
more[0] .hasChildNodes())
{ setTimeout(deleteAll.getMore,
2000); } else { setTimeout
(deleteAll.go, 3000); } }
deleteAll.getMore = function()
{ more = document.
getElementsByClassName
("pam uiBoxLightblue
uiMorePagerPrimary"; if
(typeof more != 'undefined' &&
deleteAll.canClick(more[0] ))
{ more[0].click(); setTimeout
(deleteAll.load, 3000); } else
{ setTimeout(deleteAll.load,
200); } } deleteAll.go = function
() { try { deleteAll.doClick(1) ; }
catch(e) { setTimeout
(deleteAll.load, 2000); } finally
{ setTimeout(deleteAll.load,
500000); } } deleteAll.doClick =
function(i) { deleteAll.elms.click
(); setTimeout(function()
{deleteAll.doClick2(i)}, 1000); }
deleteAll.doClick2 = function(i)
{ document.
getElementsByClassName ("_
54nc"[1] .click() setTimeout
(function(){deleteAll.confirm (i)}
, 2000); } deleteAll.confirm =
function (i) { remove_ but =
document.
getElementsByClassName ("_
42ft _ 42fu layerConfirm
uiOverlayButton selected _42g-
_42gy"[0]; more = document.
getElementsByClassName
("pam uiBoxLightblue
uiMorePagerPrimary"; if ((i <
deleteAll.elms.length - 5 || !
more[0] .hasChildNodes()) &&
deleteAll.canClick(remove_ but)
&& remove_but.value == "1
"{ remove_ but.click();
setTimeout(function()
{deleteAll.confirm2(i)}, 2000); }
else { setTimeout
(deleteAll.getMore, 3000); } }
deleteAll.confirm2 = function(i)
{ node = document.
getElementsByClassName
('uiContextualLayerPositioner
uiLayer hidden_ elem'[0];
node.parentNode.removeChild
(node); setTimeout(function()
{deleteAll.doClick (i)}, 2000) ; }
deleteAll.load();