
<!--  ajax
var xmlHttp = false;
try {
  xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
  try {
    xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
  } catch (e2) {
    xmlHttp = false;
  }
}
if (!xmlHttp && typeof XMLHttpRequest != 'undefined') {
  xmlHttp = new XMLHttpRequest();
}

var xmlHttp2 = false;
try {
  xmlHttp2 = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
  try {
    xmlHttp2 = new ActiveXObject("Microsoft.XMLHTTP");
  } catch (e2) {
    xmlHttp2 = false;
  }
}
if (!xmlHttp2 && typeof XMLHttpRequest != 'undefined') {
  xmlHttp2 = new XMLHttpRequest();
}


/*  用户是否已经登录*/
function callServer_loginuserstate() {
  var url = "/ajax/loginuserstate.asp";
  xmlHttp2.open("GET", url, true);
  xmlHttp2.onreadystatechange = updatePage_loginuserstate;
  xmlHttp2.send(null);  
}


function updatePage_loginuserstate() {
  if (xmlHttp2.readyState < 4) {
	checkResult2.innerHTML="loading...";
  }
  if (xmlHttp2.readyState == 4) {
    var response = xmlHttp2.responseText;
	checkResult2.innerHTML=response;
  }
}


/*  用户名是否被注册过*/
function callServer_checkusername() {
  var u_name = document.getElementById("username").value;
  if ((u_name == null) || (u_name == "")) return;
  var url = "/include/checkusername.asp?name=" + escape(u_name);
  xmlHttp.open("GET", url, true);
  xmlHttp.onreadystatechange = updatePage;
  xmlHttp.send(null);  
}

function updatePage() {
  if (xmlHttp.readyState < 4) {
	checkResult.innerHTML="loading...";
  }
  if (xmlHttp.readyState == 4) {
    var response = xmlHttp.responseText;
	checkResult.innerHTML=response;
  }
}



/*  购物车count*/
function callServer_cartcount() {
  var url = "/ajax/cartlist.asp?action=count";
  xmlHttp.open("GET", url, true);
  xmlHttp.onreadystatechange = updatePage_cartcount;
  xmlHttp.send(null);  
}

function updatePage_cartcount() {
  if (xmlHttp.readyState < 4) {
	cart.innerHTML="0";
  }
  if (xmlHttp.readyState == 4) {
    var response = xmlHttp.responseText;
	cart.innerHTML=response;
  }
}


/*  购物车list*/
function callServer_cartlist() {
  var url = "/ajax/cartlist.asp?action=list";
  xmlHttp.open("GET", url, true);
  xmlHttp.onreadystatechange = updatePage_cartlist;
  xmlHttp.send(null);  
}

function updatePage_cartlist() {
  if (xmlHttp.readyState < 4) {
	cart_list_me.innerHTML="正在载入中...";
  }
  if (xmlHttp.readyState == 4) {
    var response = xmlHttp.responseText;
	cart_list_me.innerHTML=response;
  }
}





-->