function checkDatum(){var year=document.getElementById('jaarcheck').value;var month=document.getElementById('maandcheck').value;var day=document.getElementById('dagcheck').value;var band_id=document.getElementById('band_id').value;var dateToCheck=new Date();dateToCheck.setFullYear(year,month-1,day);var today=new Date();if(dateToCheck<=today){alert('Kies een datum in de toekomst');document.getElementById('tbl_beschikbaarheid').style.display='none';return false;}
document.getElementById('row_loading').style.display='block';document.getElementById('row_ochtend').style.display='none';document.getElementById('row_middag').style.display='none';document.getElementById('row_avond').style.display='none';document.getElementById('row_available').style.display='none';document.getElementById('row_notavailable').style.display='none';document.getElementById('tbl_beschikbaarheid').style.display='block';var dagcheck=document.getElementById('dagcheck');var maandcheck=document.getElementById('maandcheck');var jaarcheck=document.getElementById('jaarcheck');ajaxCheckDatum(band_id);}
function showResult(daypartsavailable){document.getElementById('row_notavailable').style.display='none';document.getElementById('row_available').style.display='none';if(daypartsavailable.indexOf('o')==-1){document.getElementById('span_ochtend').innerHTML="Niet beschikbaar";document.getElementById('img_ochtend').src="images/iconfout.gif";}
else{document.getElementById('span_ochtend').innerHTML="Beschikbaar";document.getElementById('img_ochtend').src="images/iconok.gif";}
if(daypartsavailable.indexOf('m')==-1){document.getElementById('span_middag').innerHTML="Niet beschikbaar";document.getElementById('img_middag').src="images/iconfout.gif";}
else{document.getElementById('span_middag').innerHTML="Beschikbaar";document.getElementById('img_middag').src="images/iconok.gif";}
if(daypartsavailable.indexOf('a')==-1){document.getElementById('span_avond').innerHTML="Niet beschikbaar";document.getElementById('img_avond').src="images/iconfout.gif";}
else{document.getElementById('span_avond').innerHTML="Beschikbaar";document.getElementById('img_avond').src="images/iconok.gif";}
document.getElementById('row_loading').style.display='none';document.getElementById('row_ochtend').style.display='block';document.getElementById('row_middag').style.display='block';document.getElementById('row_avond').style.display='block';if(daypartsavailable.length>0){document.getElementById('row_available').style.display='block';}
else{document.getElementById('row_notavailable').style.display='block';}}
function ajaxCheckDatum(id){var dagcheck=document.getElementById('dagcheck');var maandcheck=document.getElementById('maandcheck');var jaarcheck=document.getElementById('jaarcheck');var parID='id='+id;var parDag='day='+dagcheck.value;var parMaand='month='+maandcheck.value;var parJaar='year='+jaarcheck.value;var parameters=parID+'&'+parDag+'&'+parMaand+'&'+parJaar;var XMLHTTPObject=createHTTPHandler();XMLHTTPObject.open('POST','http://www.opzoeknaareenband.nl/include/CheckDatum2.php',true);XMLHTTPObject.onreadystatechange=function(){if(XMLHTTPObject.readyState==4){showResult(XMLHTTPObject.responseText);}}
XMLHTTPObject.setRequestHeader("Content-type","application/x-www-form-urlencoded");XMLHTTPObject.setRequestHeader("Content-length",parameters.length);XMLHTTPObject.setRequestHeader("Cache-Control","no-cache");XMLHTTPObject.setRequestHeader("X_USERAGENT","MijnAjaxApplicatie");XMLHTTPObject.send(parameters);}