//ajax提交表单
function GE(a){
	return document.getElementById(a);
	} 
function hid(){
	GE('msg').style.display="none";	
	}

function Check(){  
  if(GE('regid').value==''){
	 GE('msg').innerHTML='用户ID不能为空';
	 GE('msg').style.display="block";	
	 return false
	 } 
 if(GE('regpassword').value==''){
	 GE('msg').innerHTML='密码不能为空';
     GE('msg').style.display="block";
	 return false
	 } 	
}

function checku()
{
var url="checkuser.asp";
url=url+"?regid="+regid.value;
url=url+"&regpassword="+regpassword.value;
showHint(url,"msg");
}

function showHint(url,divid)
{
   xmlHttp=GetXmlHttpObject()
  if (xmlHttp==null)
    {
    alert ("您的浏览器不支持AJAX！");
    return;
    }	
xmlHttp.onreadystatechange=function()
{
if (xmlHttp.readyState==4)
  {
  var str= xmlHttp.responseText;   
  GE(divid).innerHTML=str;
  }	
}
xmlHttp.open("POST",url,true);
xmlHttp.setRequestHeader( "Content-Type", "text/html;charset=UTF-8" ); 
xmlHttp.send(null);  
}

function GetXmlHttpObject()
{
  var xmlHttp=null;
  try
    {
    // Firefox, Opera 8.0+, Safari
    xmlHttp=new XMLHttpRequest();
    }
  catch (e)
    {
    // Internet Explorer
    try
      {
      xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
      }
    catch (e)
      {
      xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
      }
    } 
  return xmlHttp;
}

//cookies设置
function SetCookie(name,value){
    var Days = 60;   //cookie 将被保存两个月
    var exp  = new Date();  //获得当前时间
    exp.setTime(exp.getTime() + Days*24*60*60*1000);  //换成毫秒
    document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}
function getCookie(name){
    var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
    if(arr != null)
  return unescape(arr[2]); 
  return null;
  }
  
function delCookie(name){
    var exp = new Date();  //当前时间
    exp.setTime(exp.getTime() - 1);
    var cval=getCookie(name);
    if(cval!=null) document.cookie= name + "="+cval+";expires="+exp.toGMTString();
}
  
function shoudiv(d1,d2,ckn){
var ckn;
var ds1=GE(d1);
var ds2=GE(d2);
if(ckn==null){
   ds2.style.display="block";
   ds1.style.display="none";
}
else{
	ds1.style.display="block";
    ds2.style.display="none";
}
}