Sending multiple Ajax requests

[livewire1974]

Hi,
I need to send 15 requests to my server and get results, these results are queries to other sites. I then update my page with the results. I need to know if I am taking the correct approach, as things are working a bit slow, and I.E. seems the be as slow as a snail. Here is my function for the first request

function one()
{
  var xmlHttpa=null;
try
  {
  xmlHttpa=new XMLHttpRequest();

}
catch (e)
  {
  try
    {
    xmlHttpa=new ActiveXObject("Msxml2.XMLHTTP");

}
  catch (e)
    {
    try
      {
      xmlHttpa=new ActiveXObject("Microsoft.XMLHTTP");
}
    catch (e)
      {
      alert("Your browser does not support AJAX!");
      return false;
      }
    }
  }
  
    xmlHttpa.onreadystatechange=function()
    {
    if(xmlHttpa.readyState==4)
      {
 	   document.getElementById('resulta').innerHTML = xmlHttpa.responseText;
	  var el = document.getElementById('showMessagea');
      el.parentNode.removeChild(el);
	   applystyle();
      }
    }

  xmlHttpa.open("GET","one.php",true);
  xmlHttpa.send(null);
  }

i then call this function and others from my page, one(); two(); etc

Am I correct in my approach?

[willkemp]

If you're making 15 Ajax requests, it's not surprising it's slow! If you want to speed it up, you'll have to reduce the number of requests. The fewer requests, the faster it will be.