var xmlHttp,nameObj;
function add_data(str,name_obj)
{ 
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null)
	{
		alert ("Browser does not support HTTP Request")
		return
	} 
	var url=str
	nameObj=name_obj
	xmlHttp.onreadystatechange=stateChanged
	xmlHttp.open("GET",url,true)
 	xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded;charset=windows-874");
    xmlHttp.setRequestHeader("Connection", "close");
	xmlHttp.send(null)
}

function add_data_post(str,name_obj)
{ 
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null)
	{
		alert ("Browser does not support HTTP Request")
		return
	} 
	var url=str
	nameObj=name_obj
	xmlHttp.onreadystatechange=stateChanged
	xmlHttp.open("POST",url,true)
 //	xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded;charset=windows-874");
 	/*xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    xmlHttp.setRequestHeader("Content-length", name_obj.length);
	xmlHttp.setRequestHeader("Content-Language","content=th");	
	xmlHttp.setRequestHeader("Content-type","text/html; charset=windows-874");*/
    xmlHttp.setRequestHeader("Connection", "close");
	xmlHttp.send(null)
}
function stateChanged(nObj) 
{ 
	
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
	document.all[nameObj].style.background="";
	//alert(xmlHttp.responseText)
	document.getElementById(nameObj).innerHTML=xmlHttp.responseText 
	} 
} 

function GetXmlHttpObject(){ 
	var objXMLHttp=null
		if (window.XMLHttpRequest){
			objXMLHttp=new XMLHttpRequest()
			//objXMLHttp.overrideMimeType("text/xml");
			//objXMLHttp.overrideMimeType("text/html");
		}else if (window.ActiveXObject){
			objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
		}		
	return objXMLHttp
}