var request;
var queryString;

function setQueryString(frm){
	queryString = "";
	var numberElements = frm.elements.length; //ÆûÀÇ elementÀÇ °¹¼ö¸¦ °¡Á®¿Â´Ù.
	
	for(var i = 0; i < numberElements; i++){
		if(i < numberElements - 1){
			if(frm.elements[i].type == "radio" || frm.elements[i].type == "checkbox" ){
				if(frm.elements[i].checked == true){
					queryString += frm.elements[i].name +"="+ escape(frm.elements[i].value) +"&";
				}
			}else{
				queryString += frm.elements[i].name +"="+ escape(frm.elements[i].value) +"&";
			}
		}else{
			if(frm.elements[i].type == "radio" || frm.elements[i].type == "checkbox" ){
				if(frm.elements[i].checked == true){
					queryString += frm.elements[i].name +"="+ escape(frm.elements[i].value);
				}
			}else{
				queryString += frm.elements[i].name +"="+ escape(frm.elements[i].value);
			}
		}
	}
	return queryString;
}

function httpRequest(reqType,url){
	try{
		//IE¸¦ »« ³ª¸ÓÁö ºí¶ó¿ìÁ®
		request = XMLHttpRequest();
	}catch(IE6){
		try{
			//IE6.0
			request = new ActiveXObject("Msxml2.XMLHTTP");
		}catch(IE5orIE4){
			try{
				//IE5.0°ú IE4.0
				request = new ActiveXObject("Microsoft.XMLHTTP");
			}catch(failed){
				request = null;
			}
		}
	}

	if(request == null){
		alert("Error createing request object!");
	}else{
		initReq(reqType,url);	
	}

}

function initReq(reqType,url){
	request.open(reqType,url,false);
	request.send(null);
	
	document.getElementById("a").innerHTML = request.responseText;

}

/* Æû»ç¿ëÀÚ°¡ ÀÔ·ÂÇÑ °ªÀ» Áö¿öÁØ´Ù.*/
function clearForm(obj){
	elementNumber = obj.elements.length;
	for(var i = 0; i < elementNumber; i++){
		if(obj.elements[i].name != "command" && obj.elements[i].name != "btn"){
			obj.elements[i].value =""
		}
	}
}