function zoek_huizen(land_array,regio_array,max_prijs,min_pers,min_slaap,cpage)
{

  for (i=0; i<land_array.length; i++)
  {
    if (land_array[i].checked==true) { land_id = land_array[i].value; }
  }
  
 i2 = 1;
 regios = '';
  for (i=0; i<regio_array.length; i++)
  {
    if (regio_array[i].checked==true) 
    {
      regios += '&regio'+i2+'='+regio_array[i].value;
      i2++;
    }
  }  
  
  if (regios=='')
  {
    alert('Selecteer tenminste 1 regio');
  } else{ 
    if(window.XMLHttpRequest) xmlhttp = new XMLHttpRequest();
    else if(window.ActiveXObject) xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    xmlhttp.onreadystatechange = 
    function() 
    { 
    if (xmlhttp.readyState==4)
      if (xmlhttp.status==200)
            zoek_huizen_show(xmlhttp);
    }
    
    xmlhttp.open('GET','require/zoekhuizen.php?land_id='+land_id+'&max_prijs='+max_prijs+'&min_pers='+min_pers+'&min_slaap='+min_slaap+regios+'&cpage='+cpage,true);
    xmlhttp.send(null);
  }
  
}


function zoek_huizen_show(req) 
{

  document.getElementById('content_bottom_center_dynamic').style.display ='none'; 
  document.getElementById('content_bottom_center_dynamic_loading').style.display = 'block';  

  var xmlDoc = req.responseXML.documentElement;  
  var kop = xmlDoc.getElementsByTagName("kop")[0].firstChild.nodeValue;  
  content = kop;
  content += '<div class="spacer_h" style="height:1px;"></div>';

  var items = xmlDoc.getElementsByTagName("huis");
  for (var i = 0 ; i < items.length ; i++) 
  {
  	var item = items[i];
  	var html = item.getElementsByTagName("html")[0].firstChild.nodeValue;                    
    content += html;    
  }
  
  document.getElementById('content_bottom_center_dynamic').innerHTML = content;
  setTimeout("document.getElementById('content_bottom_center_dynamic_loading').style.display='none';",1000);
  setTimeout("document.getElementById('content_bottom_center_dynamic').style.display='block';",1000);

}