function getXMLHttpRequestObject(){
	var xmlobj;
    
	if(xmlobj!=null&&xmlobj.readyState!=0&&xmlobj.readyState!=4){
        xmlobj.abort();
    }
    try{
        xmlobj=new XMLHttpRequest();
    }
    catch(e){
        try{
            xmlobj=new ActiveXObject('Microsoft.XMLHTTP');
        }
        catch(e){
            xmlobj=null;
            return false;
        }
    }
	return xmlobj;
}

function receiverStatusChecker(){
    if(receiverXMLHttpObj.readyState==4){
		if(receiverXMLHttpObj.status==200){
			var myString = receiverXMLHttpObj.responseText;
			var mySplitResult = myString.split('//**//');
			
			switch(mySplitResult[0]) {
				case 'class_member':
					class_member(myString);
				break;
				case 'class_order':
					class_order(myString);
				break;
				case 'class_contents_detail':
					class_contents_detail(myString);
				break;
				case 'class_banner':
					class_banner(myString);
				break;
				case 'class_cover_banner':
					class_cover_banner(myString);
				break;
				case 'class_topten_detail':
					class_topten_detail(myString);
				break;
				default:
					document.getElementById('middle_d').innerHTML = myString; // class order
				break;
			}
        } else{
           //alert('Failed to get response :'+ receiverXMLHttpObj.statusText);
        }
    }
}

var receiverXMLHttpObj=getXMLHttpRequestObject();