var ajaxdatasheets;

function datasheetsSwitch(uri)      
{
ajaxdatasheets=null;
if (window.XMLHttpRequest)
  {// code for Firefox, Opera, IE7, etc.
  ajaxdatasheets=new XMLHttpRequest();
  }
else if (window.ActiveXObject)
  {// code for IE6, IE5
  ajaxdatasheets=new ActiveXObject("Microsoft.XMLHTTP");
  }
if (ajaxdatasheets!=null)
  {
  ajaxdatasheets.onreadystatechange=state_Change_pdf2;
  ajaxdatasheets.open("GET",uri,true);
  ajaxdatasheets.send(null);
  }
else
  {
  alert("Your browser does not support XMLHTTP.");
  }
}

function state_Change_pdf2()
{
if (ajaxdatasheets.readyState==4)
  {// 4 = "loaded"
  if (ajaxdatasheets.status==200)
    {// 200 = "OK"
    document.getElementById('datasheetscontainer').innerHTML=ajaxdatasheets.responseText;
    }
  else
    {
    alert("Error: " + ajaxdatasheets.statusText + "?");
    }
  }
}