// JScript 文件


function check()
{
   var userName = $("username");
    var passwd = $("pass");
    var yian=$("yian");
    //校验输入的参数
  if(userName.value=="")
  {
  alert("请输入用户名!");
  userName.focus();
  return false;
  }
  if(passwd.value=="")
  {
  alert("密码不能为空");
  passwd.focus();
   return false;
  }
  if(yian.value=="")
  {
  alert("验证码不能为空");
  yian.focus();
   return false;
  }
  else if(yian.value.length<4)
  {
  alert("输入的验证码错误!");
  yian.focus();
   return false;
  }
  loadXML("get","../as/login.ashx?user="+userName.value+"&pas="+passwd.value+"&yian="+yian.value+"",getuserlogin);
   return true;
}
function getuserlogin(xmlDom)
{
if(xmlDom.responseText.toLowerCase()=="wrong1")
{
$("username").value="";
$("pass").value="";
//$("yian").value="";
$("username").focus();
alert("用户名或密码错误");

refreshSafeCode('12');
return false;
}
else if(xmlDom.responseText.toLowerCase()=="wrong2")
{
alert("验证码错误!");
$("yian").value="";
refreshSafeCode('12');
return false;
}
else
{
window.location.href="../awas/";
  
}
}

function showSafeCode() {	
	var iCode = Math.floor(900000*Math.random()) + 100000;
	document.write('<img id="vcodeimg" src="../awas/checkCode.aspx?s=' + iCode + '" style="cursor:hand;border:1px solid #ccc;vertical-align:top;" onclick="refreshSafeCode(' + iCode + ');" alt="" />');
     //document.write("&nbsp;<a href='#' onclick='refreshSafeCode(" + iCode + ");return false;'>看不清?</a>");
	document.write('<input type="hidden" name="SafeCodeName" value="' + iCode + '" />');
}
function refreshSafeCode(iRnd) {
	var eImg = document.getElementById("vcodeimg");
	var eImgsrc = null;
	eImgsrc = '../awas/checkCode.aspx?s=' + iRnd + '&t='+ Math.random();
	eImg.src = eImgsrc;
	setInterval('eImg.src=eImgsrc',600000); 
}
//响应回车
document.onkeydown = function(event)
{   
	var eve = event || window.event; 
    if(eve.keyCode == 13)
    {
       document.getElementById("btnSend").focus();
    }
}