var xmlHttp1

function guestNumber(str)
{ 
xmlHttp1=GetXmlHttpObject1();
if (xmlHttp1==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url="rooms.php";
url=url+"?roomnumber="+str;
xmlHttp1.onreadystatechange=stateChangedonRoomNumbers;
xmlHttp1.open("GET",url,true);
xmlHttp1.send(null);
}




function stateChangedonRoomNumbers() 
{ 
if (xmlHttp1.readyState==4)
{ 
document.getElementById("guests").innerHTML=xmlHttp1.responseText;
}
if (xmlHttp1.readyState==1) {
	
	//document.write('');
	document.getElementById("guests").innerHTML="&nbsp;&nbsp;<img src='images/indicator.gif' align='absmiddle'> please wait !. ";
	
	}
if (xmlHttp1.readyState==3) {
	
	document.getElementById("guests").innerHTML="&nbsp;&nbsp;   <img src='images/indicator.gif' align='absmiddle'> please wait ! ";
	
	}	

}

function GetXmlHttpObject1()
{
var xmlHttp1=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp1=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp1=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp1=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp1;
}