var req = null;

function getHttpRequestObj() {
	if(window.XMLHttpRequest) {
		req = new XMLHttpRequest();
	} else if(window.ActiveXObject) {
		try {
			req = new ActiveXObject("Msxml2.XMLHTTP");
		} catch(e) {
			req = new ActiveXObject("Microsoft.XMLHTTP");
    		}
	}
}

function getHttpResponse(sv, param, elementid) {
	req.open("POST", sv);
	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8"); 
	req.send(param);
	req.onreadystatechange = function() {
		if (req.readyState == 4 && req.status == 200) {
			var obj = document.getElementById( elementid );
			obj.innerHTML = req.responseText;
		}
	}
}

function NaviChg(i) {
	nv = document.getElementById("navicommand").childNodes;
	for (n = 0; n < nv.length; n++) {
		if (nv[n].id == i) {
			nv[n].className = "selected";
		} else {
			nv[n].className = "";
		}
	}
}