var oXmlHttp;
function stateChanged(){
  if (oXmlHttp.readyState==4 || oXmlHttp.readyState=="complete"){
    document.getElementById('infoProducto').innerHTML=oXmlHttp.responseText
  }
}

function infoProducto(tabla,id){
  document.getElementById('mascara').style.visibility='visible';
  document.getElementById('infoProducto').style.visibility='visible';
  var url="info_foto.php?tabla=" + tabla + "&id=" + id;
  oXmlHttp=GetHttpObject(stateChanged);
  oXmlHttp.open("GET", url , true);
  oXmlHttp.send(null);
}

function GetHttpObject(handler){
  try
  {
    var oRequester = new ActiveXObject("Microsoft.XMLHTTP");
    oRequester.onreadystatechange=handler
      return oRequester
  }
  catch (error){
    try{
      var oRequester = new XMLHttpRequest();
      oRequester.onload=handler
        oRequester.onerror=handler
        return oRequester
    }
    catch (error){
      return false;
    }
  }
}

function cancelar(){
	document.getElementById('mascara').style.visibility='hidden';
	document.getElementById('infoProducto').style.visibility='hidden';
	document.getElementById('infoProducto').innerHTML='Loading...';
}