function openSmall( loc, windowname )
{
popSmall = window.open('',windowname,'left=300,top=200,screenX=300,screenY=200,width=325,height=350,scrollbars,resizable');
popSmall.location.href=loc;
if(popSmall.opener == null) pop.opener = window;
popSmall.opener.name = "opener";
popSmall.focus();
}

function openInvoice( loc  )
{
popInvoice = window.open('','invoice','left=300,top=200,screenX=300,screenY=200,width=450,height=350,scrollbars,resizable');
popInvoice.location.href=loc;
if(popInvoice.opener == null) pop.opener = window;
popInvoice.opener.name = "opener";
popInvoice.focus();
}