varxmlrequest;
functioncreateXMLHttpRequest(){
if(window.XMLHttpRequest){
xmlrequest=newXMLHttpRequest();
}
elseif(window.ActiveXObject){
try{
xmlrequest=newActiveXObject("Msxm12.XMLHTTP");
}
catch(e){
try{
xmlrequest=newActiveXObject("Microsoft.XMLHTTP");
}
catch(e){}
}
}
}
functionlogin(){
createXMLHttpRequest();
varuser = document.getElementById("yhm").value;
varpassword = document.getElementById("mm").value;
if(user==""||password==""){
alert("请输入用户名和密码!");
returnfalse;
}
varurl ="check.php?user="+user+"&password="+password;
xmlrequest.open("POST",url,true);
xmlrequest.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
xmlrequest.onreadystatechange =function(){
if(xmlrequest.readyState == 4){
if(xmlrequest.status==200){
varmsg = xmlrequest.responseText;
if(msg=='1'){
alert('用户名或密码错误!');
user="";
password="";
returnfalse;
}
else{
window.location.href="index1.html";
}
}
}
}
xmlrequest.send("user="+user+"&password="+password);
}
