var addpopup = '';

function popup(url) 
{
	if (addpopup.location && !addpopup.closed)
	{
	    addpopup.location.href = url;
	    addpopup.focus(); 
	}
    else
	{ 
	    addpopup = window.open(url,'addpopup','left=10, top=10, width=810, height=565, resizable=yes, toolbar=no, scrollbars=yes, status=yes');
	}
}

function cleanup()
{
    if (addpopup.location && !addpopup.closed) 
    { 
	addpopup.close(); 
    }
}