<script>
//var str;
var objXML;
function response_date()
{
var msg = document.getElementById("msg");
var f = document.forms[0];
var users = f.users.value;
var pwd = f.pwd.value;
if (users == "" || pwd == "") {
alert("请添加数据");
return false;
}
objXML = initXMLHTTP();
if (!objXML) {
alert("XMLHttpRequest对象 创建失败");
return false;
}
var url = "chkdate.php";
var postStr = "username=" + users + "&password=" + pwd;
//str = postStr;
objXML.open("POST", url, true);
objXML.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
objXML.send(postStr);
objXML.onreadystatechange = readyStateChanged;
}
function readyStateChanged()
{
if (objXML.readyState == 4) {
if (objXML.status == 200) {
msg.innerHTML = objXML.responseText;
}
}
}
function initXMLHTTP()
{
var xmlHttp = false;
if (window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest();
} else if (window.ActiveXObject) {
try {
xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch(e) {
try {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
} catch(e) {
xmlHttp = false;
}
}
}
return xmlHttp;
}
</script>