function showAmount(item)
{
    var popup = new PopupWindow('amount');
    popup.autoHide(); 
    popup.offsetX = 25;
    popup.offsetY = 0;
    popup.populate('<div onkeydown="if (event.keyCode==13) { event.returnValue = false; getAmount('+item+'); popup.hidePopup(); return false; }" style="font-family: Tahoma; font-size: 11;"><form name="amount" method="post"><input name="amount" type="text" value="1" style="font-size: 11px; vertical-align: middle;" size="4"><input type="button" value="&#x221A" onclick="getAmount('+item+'); popup.hidePopup(); return false;" style="vertical-align: middle; font-size: 10px;"><form></div>'); 
    popup.showPopup('item-'+item);
    document.forms['amount'].amount.focus(); 
    document.forms['amount'].amount.select();
    return false;
}