function load(url, callback) {

  var xhr;
		
  if(typeof XMLHttpRequest !== 'undefined') { xhr = new XMLHttpRequest(); }
  else {

    var versions = ["Microsoft.XmlHttp", 
		    "MSXML2.XmlHttp",
		    "MSXML2.XmlHttp.3.0", 
		    "MSXML2.XmlHttp.4.0",
		    "MSXML2.XmlHttp.5.0"];
			 
    for(var i = 0, len = versions.length; i < len; i++) {
	
      try {

        xhr = new ActiveXObject(versions[i]);
	break;
			 
      } catch(e) {}

    }
	
  }
		
  function ensureReadiness() {
			
    if(xhr.readyState < 4) {
				
      return;
			
    }
			
    if(xhr.status !== 200) {
				
      return;
	
    }

    if(xhr.readyState === 4) {
	    
      callback(xhr);

    }			
		
  }
  
  xhr.onreadystatechange = ensureReadiness;
		
  xhr.open('GET', url, true);
  xhr.send('');
	
}
  
function ilyse(id) {
	
 if(id > 0) {
	  
  load("inc/products.php?id=" + id, function(xhr) {

    if(xhr.responseText) { 
	
      var json = JSON.parse(xhr.responseText);
      document.getElementById('photo').src = "img/" + json[0].photo;
      
      spe = document.getElementById('specs_p');
      if(json[0].dimensions) { 
	      
	      spe.innerHTML = json[0].dimensions;
	      spe.style.display = "block";
	      
      }
      
      if(json[0].sold === '1') {
	      
	      spe.innerHTML += "<span class='sold'>Sold</span>";
	      
      }
      
      document.getElementById('desc_p').innerHTML = json[0].description;
    
    }
  
  });
  
 } else {
	 
  document.getElementById('photo').src = "img/" + photo;
  document.getElementById('specs_p').innerHTML = specs_p;
  document.getElementById('specs_p').style.display = "none";
  document.getElementById('desc_p').innerHTML = desc_p;
		
 }
	
}