var xmlhttp = true;
var thisDiv,params;
function getAjaxPost(whichDiv,url,parameters) {
	params = parameters;
	thisDiv = (whichDiv)?whichDiv:'eval'; 
	xmlhttp = false;
	if (window.XMLHttpRequest) { // Mozilla
		xmlhttp = new XMLHttpRequest();
		if (xmlhttp.overrideMimeType) {
			xmlhttp.overrideMimeType('text/html');
		}
	} else if (window.ActiveXObject) { // IE
		try {
			xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}
	if (!xmlhttp) {
		alert('Cannot create XMLHTTP instance');
		return false;
	}
	xmlhttp.onreadystatechange = dispContents;
	xmlhttp.open('POST', url, true);
	xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	//xmlhttp.setRequestHeader("Content-length", parameters.length);
	//xmlhttp.setRequestHeader("Connection", "close");
	xmlhttp.send(parameters);
}
function dispContents() {
	if (xmlhttp.readyState == 4) {
		if (xmlhttp.status == 200) {
			eval(xmlhttp.responseText);
		} else {
			alert('error [ajax.js 1]');
		}
	}
}