////
// check browser
//
// @sample        if(chkAjaBrowser()){ location.href='nonajax.htm' }
// @sample        oj = new chkAjaBrowser();if(oj.bw.safari){ /* Safari code */ }
// @return        The library operation it was possible true  true|false
//
//  Enable list (v038)
//   WinIE 5.5+ 
//   Konqueror 3.3+
//   AppleWebKit(Safari,OmniWeb,Shiira) 124+ 
//   Mozilla(Firefox,Netscape,Galeon,Epiphany,K-Meleon,Sylera) 20011128+ 
//   Opera 8+ 
//
function chkAjaBrowser()
{
	var a,ua = navigator.userAgent;
	this.bw= { 
	  safari    : ((a=ua.split('AppleWebKit/')[1])?a.split('(')[0]:0)>=124 ,
	  konqueror : ((a=ua.split('Konqueror/')[1])?a.split(';')[0]:0)>=3.3 ,
	  mozes     : ((a=ua.split('Gecko/')[1])?a.split(" ")[0]:0) >= 20011128 ,
	  opera     : (!!window.opera) && ((typeof XMLHttpRequest)=='function') ,
	  msie      : (!!window.ActiveXObject)?(!!createHttpRequest()):false 
	}
	return (this.bw.safari||this.bw.konqueror||this.bw.mozes||this.bw.opera||this.bw.msie)
}


////
// Create XMLHttpRequest Object
//
// @sample        oj = createHttpRequest()
// @return        XMLHttpRequest Object
//
function createHttpRequest()
{
	if(window.ActiveXObject){
		 //Win e4,e5,e6
		try {
			return new ActiveXObject("Msxml2.XMLHTTP") ;
		} catch (e) {
			try {
				return new ActiveXObject("Microsoft.XMLHTTP") ;
			} catch (e2) {
				return null ;
			}
		}
	} else if(window.XMLHttpRequest){
		 //Win Mac Linux m1,f1,o8 Mac s1 Linux k3
		return new XMLHttpRequest() ;
	} else {
		return null ;
	}
}

////
// Call request function
// @sample         sendRequest(onloaded,'&prog=1','POST','./about2.php',true,true)
// @param callback callback function name
// @param data	   send data (&name1=value1&name2=value2...)
// @param method   "POST" or "GET"
// @param url      request URL
// @param async	   asynchronous true synchronize false
// @param sload	   super load true??false
// @param user	   authenticate page user name
// @param password authenticate page user password
//
function sendRequest(callback,data,method,url,async,sload,user,password)
{
	// Create XMLHttpRequest Object
	var oj = createHttpRequest();
	if( oj == null ) return null;
	
	//Compulsion load
	var sload = (!!sendRequest.arguments[5])?sload:false;
	if(sload || method.toUpperCase() == 'GET')url += "?";
	if(sload)url=url+"t="+(new Date()).getTime();
	
	//Check browser
	var bwoj = new chkAjaBrowser();
	var opera	  = bwoj.bw.opera;
	var safari	  = bwoj.bw.safari;
	var konqueror = bwoj.bw.konqueror;
	var mozes	  = bwoj.bw.mozes ;

	if(opera || safari || mozes){
		oj.onload = function () { callback(oj); }
	} else {
	
		oj.onreadystatechange =function () 
		{
			if ( oj.readyState == 4 ){
				callback(oj);
			}
		}
	}

	//URL encoding
	data = uriEncode(data)
	if(method.toUpperCase() == 'GET') {
		url += data
	}
	
	//open
	oj.open(method,url,async,user,password);

	//header set (application/x-www-form-urlencoded)
	setEncHeader(oj)

	//alert("////jslb_ajaxxx.js//// \n data:"+data+" \n method:"+method+" \n url:"+url+" \n async:"+async);
	
	//send
	oj.send(data);
	
	//URI encoding
	function setEncHeader(obj){

		var contentTypeUrlenc = "application/x-www-form-urlencoded; charset=UTF-8";
		if(!window.opera){
			obj.setRequestHeader("Content-Type",contentTypeUrlenc);
		} else {
			if((typeof obj.setRequestHeader) == "function")
				obj.setRequestHeader("Content-Type",contentTypeUrlenc);
		}	
		return obj
	}

	//URL encoding
	function uriEncode(data){

		if(data!=""){
			var encdata = '';
			var datas = data.split('&');
			for(i=1;i<datas.length;i++)
			{
				var dataq = datas[i].split('=');
				encdata += '&'+encodeURIComponent(dataq[0])+'='+encodeURIComponent(dataq[1]);
			}
		} else {
			encdata = "";
		}
		return encdata;
	}
}

// Get XML DOM node value
// @sample			getColText(ROW, "name")
// @param ROW 		XML childNodes
// @param nodeText	Node Name
// @return Text		Node value
function getColText(ROW, nodeText)
{
	var Text = "";
	
	if(nodeText.trim().length > 0) {
		var Column = ROW.getElementsByTagName(nodeText);
		
		if(Column != null) {
			Text = Column.item(0).text;
		}
	}
	
	return Text;
}