//AJAX递交数据处理请求
var http_requestMain = false;
function makeRequestMain(url) {
	//alert(url);
	http_requestMain = false;

	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_requestMain = new XMLHttpRequest();
		if (http_requestMain.overrideMimeType) {
			http_requestMain.overrideMimeType('text/xml');
		}
	} else if (window.ActiveXObject) { // IE
		try {
			http_requestMain = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_requestMain = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}

	if (!http_requestMain) {
		alert('Giving up :( Cannot create an XMLHTTP instance');
		return false;
	}
	http_requestMain.onreadystatechange = alertContentsMain;
	http_requestMain.open('GET', url, true);
	http_requestMain.send(null);

}

function alertContentsMain() {

	if (http_requestMain.readyState == 4) {
		if (http_requestMain.status == 200) {
			var tmpStr = http_requestMain.responseText;
			var tmpNum = tmpStr.indexOf("成功");
			var tmpNumName = tmpStr.indexOf("用户名");
			var tmpNumPwd = tmpStr.indexOf("密码");
			alert(tmpStr);
			if (tmpNum!=-1){				
				window.location.href="../index/index.asp";	
			}
			if (tmpNumName!=-1){			
				document.all.userid.select();
				document.all.userid.focus();	
			}
			if (tmpNumPwd!=-1){				
				document.all.password.select();
				document.all.password.focus();
			}
		} 
		else {
			alert(http_requestMain.status);
			alert('There was a problem with the request.');
		}
	}
}