var objId = "";

function GetXmlHttpObject(){

  var xmlHttp=null;
  try
    {
    // Firefox, Opera 8.0+, Safari
    xmlHttp=new XMLHttpRequest();
    }
  catch (e)
    {
    // Internet Explorer
    try
      {
      xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
      }
    catch (e)
      {
      xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
      }
    }
  return xmlHttp;
}

function stateChanged(){

	if (xmlHttp.readyState==4)
	{
		document.getElementById(objId).innerHTML = xmlHttp.responseText;
	}
}// end fx


function getOptImage(x,objId2){
 objId = objId2;
	str = x.value;
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
	  {
	  alert ("Your browser does not support AJAX!");
	  return;
	  }
var url="optimage.php";
url=url+"?id="+str;

xmlHttp.onreadystatechange=stateChanged;

xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}/// end fx