Something

var listen = document.evaluate( '/html/body/table/tbody/tr/td[1]' ,document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null ).singleNodeValue;function showTheThing(s) {  var el=document.getElementById('scplaying');  if(!el) {    el=document.createElement('table');    el=listen.appendChild(el);    el.id='scplaying';    el.className='off';    el.addEventListener('click', function() {       var el=document.getElementById('scplaying');      el.className = el.className == 'off' ? 'on': 'off';    }, false);  }  el.innerHTML = s;}function doTheThing() {  var now=new Date();  var milli=now.getTime();  var then=parseInt(GM_getValue('milli', '0'))+50000;  if(milli > then) {    GM_xmlhttpRequest({      method: 'GET',      url: 'http://mycoffeelounge.net:8000/played.html',      headers: {        'User-agent': 'Mozilla/5.0 (compatible) Greasemonkey',      },      onload: function(resp) {        var data=resp.responseText;        data=data.replace(/.*<\/table><br><table.*?>(.*?)<\/table>.*/mi, '$1');        showTheThing(data);        var now=new Date;        var milli=now.getTime();        GM_setValue('milli', ''+milli);        GM_setValue('data', data);      }    });  } else {    showTheThing(GM_getValue('data', ''));  }}window.setInterval(doTheThing, 60000);GM_addStyle([  '#scplaying tr:first-child { display:none; }',  '#scplaying tr:first-child + tr > td + td + td { display:none; }',  '#scplaying.off tr + tr + tr { display:none; }',  '#scplaying.off td:first-child { display:none; }',  '#scplaying { background:black; color:orange; position:absolute; cursor: pointer; font: 10px Verdana sansserif; }'].join('\n'));