function acco_checkboek_start() {
  var s=t='';

  getoffer(); //in: acco_bewerk_algemeen.js

  t+='<table width="100%" cellspacing="0" cellpadding="0" border="0">';
  //kerstaanbieding
  if (xmasoffer>0)
  t+='<tr>'+
       '<td style="padding-left:4px; padding-right:4px;">'+ //kerstaanbieding
         '<table style="width:764px; height:24px; font-weight:bold;" cellspacing="0" cellpadding="0" border="0">'+
         '<col width="112"><col>'+
         '<tr>'+
           '<td style="padding-left:4px; background-color:#ff0000; color:#ffffff;">'+rss(translations.languageName('rssKerstOpZnKop'))+':</td>'+
           '<td style="padding-left:4px; background-color:#ff6666; color:#000000;">'+rss(translations.languageName('rssDeKerstmanGeeftU50PKorting'))+' (<a class="a_default" href="http://www.groepsaccommodaties.com/groepen/FAQ_Prijzen/" target="_blank" style="">'+rss(translations.languageName('rssKlikHierVoorDeVoorwaarden'))+'</a>)</td>'+
         '</tr>'+
         '<tr><td colspan="2" style="height:4px;"></td></tr>'+
         '</table>'+
       '</td>'+
     '</tr>';
  //aanbieding
  if (offer_bannertext!='') {
  t+='<tr>'+
       '<td style="padding-left:4px; padding-right:4px;">'; //aanbieding
      t+='<table style="width:764px; background-color:#f9e874; font-weight:bold;" cellspacing="0" cellpadding="0" border="0">'+
         '<col width="112"><col>'+
         '<tr>'+
           '<td style="padding-left:4px; background-color:#f8d70c;" valign="top">'+rss(translations.languageName('rssAanbieding_CAP'))+':</td>'+
           '<td style="padding-left:4px;">'+offer_bannertext+'</td>'+
         '</tr>';
    if (offer_text!='')
      t+='<tr>'+
           '<td>&nbsp;</td>'+
           '<td style="padding-left:4px; font-size:9pt;">'+offer_text+'</td>'+
         '</tr>';
      t+='<tr><td colspan="2" style="height:4px;"></td></tr>'+
         '</table>'+
       '</td>'+
     '</tr>';
  }
  t+='</table>'+
     '<span id="checkboekiframespan"></span>';

  return t;
}