var AJAX = 
{ 
    XmlHttp: null, 

    create : function () 
    { 
        try { 
	if ( window.XMLHttpRequest ) 
	{ 
	    AJAX.XmlHttp = new XMLHttpRequest(); 
            
	    // 일부의 모질라 버전을은 readyState property, 
	    // onreadystate event를 지원하지 않으므로. - from xmlextrs 
		
	    if ( this.XmlHttp.readyState == null ) 
	    { 
	        this.XmlHttp.readyState = 1; 

	        this.XmlHttp.addEventListener( "load", function () 
	        { 
	            this.XmlHttp.readyState = 4; 

	            if ( typeof this.XmlHttp.onreadystatechange == "function" ) { tmpXmlHtp.onreadystatechange(); } }, false); 
	        } 
	    } 
	    else { AJAX.XmlHttp = new ActiveXObject( "Microsoft.XMLHTTP" ); } 
	} 
	catch (e) 
	{ 
	        alert( "error#01" ); 
	} 
        } 
} 




// Text 방식으로 읽기 

AJAX.openText =  function ( method, url, async, uname, pswd ) 
{ 
        if ( AJAX.XmlHttp != null ) 
        { 
	if ( uname == undefined )    { AJAX.XmlHttp.open(method, url, async, uname, pswd); } 
	else	        { AJAX.XmlHttp.open(method, url, async); } 

	AJAX.XmlHttp.onreadystatechange = function () 
	{ 
	        if ( AJAX.XmlHttp.readyState == 4 ) 
	        { 
		if ( AJAX.XmlHttp.status == 200 ) { AJAX.statusSuccessHandler( AJAX.XmlHttp.responseText ); }  // 200 : 성공 
		else 
		{ 
		        AJAX.statusErrorHandler(); 
		        alert( "읽기실패" ); 
		} 
	        } 
	} 
        } else { alert ( "오브젝트 생성실패" ); } 
} 


AJAX.send = function ( content ) 
{ 
	if ( content == undefined )    { AJAX.XmlHttp.send( null ); } 
	else	        { AJAX.XmlHttp.send( content ); } 
} 


AJAX.setOnReadyStateChange = function ( funcname ) 
{ 
	if ( AJAX.XmlHttp )        { AJAX.XmlHttp.onreadystatechange = funcname; } 
	else	    { alert ( "오브젝트 생성실패" ); } 
} 
	

// status 200 일 때 처리 함수 
AJAX.statusSuccessHandler = function ( data ) 
{ 
    alert( data ); 
} 


AJAX.setStatusSuccessHandler = function ( funcname ) 
{ 
    AJAX.statusSuccessHandler = funcname; 
} 


// status 200 일 때 기본 처리 함수 
// setStatusSuccessHandler() 로 대체 가능 

AJAX.statusErrorHandler = function ( status ) 
{ 
    AJAX.rtnText = AJAX.XmlHttp.responseText; 
} 


AJAX.setStatusSuccessHandler = function ( funcname ) 
{ 
    AJAX.statusSuccessHandler = funcname 
} 


AJAX.setStatusErrorHandler = function ( funcname ) 
{ 
    AJAX.statusErrorHandler = funcname 
} 


AJAX.setRequestHeader = function ( label, value ) 
{ 
    AJAX.XmlHttp.setRequestHeader( label, value ); 
}