function cookiesDisabled() {
  var result=true;
  // some browser versions support this - use it if possible
  if (navigator.cookiesEnabled)
    return false;
  
  // else try to set and read a cookie
  document.cookie = "testcookie=yes;";
  var cookieSet = document.cookie;
  if (cookieSet.indexOf("testcookie=yes") > -1) {
    result=false;
  }
  document.cookie = "testcookie=;expires=;";
  return result;
}

function login(evt) {
	if (evt.keyCode == 13){
    loginEtoH();
	}
}

function loginEtoH() {
  if (cookiesDisabled()) {
    alert("家校互联需要您的浏览器支持cookie.\n请修改您的浏览器设置然后重新登录.");
//    return false;
    return;
  }

  if (document.loginForm.schoolId.value == "zdsoft.net") {
    document.loginForm.action = "login.do";
  }
  document.loginForm.submit()
}