var xmlHttp

function showDescription(str)
{ 
//alert("utkarsh");	
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  }
  if(str=='Add')
	{
	  var url="saiext/a.php?description="+document.getElementById("description").value;
	}
	
//url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function stateChanged() 
{ 
if (xmlHttp.readyState==4)
{ 
document.getElementById("description").value=xmlHttp.responseText;
if(xmlHttp.responseText){
alert('Address added successfully');
}else{
alert('Address added failed');
}
//window.location="map.php?uid="+xmlHttp.responseText;
//alert(xmlHttp.responseText);
}
}

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;
}