mootools and activewidgets

hello. i have asked this q before, but didn't get answer. why wudn't this code work when mootools api is added. the code works fine when mootools link is commented out. it seems like mootools messes the array part:

var obj = new AW.UI.Combo;
obj.setId("test");
obj.setTabIndex(0);
obj.setControlPosition(120, 120);
obj.setControlSize(80, 20);
obj.setStyle("z-index", "10");
obj.setItemText(["Airport Transfer Cape Town","Airport Transfer Johannesburg","All","Cape Town","Durban","Eastgate","Johannesburg","Port Elizabeth","Windhoek"]);
obj.setItemCount(9);
obj.setItemValue(["7","9","8","1","4","6","2","3","5"]);
obj.getContent('box/text').setAttribute('readonly', true);
document.write(obj);