function getvalue(id_name)
{
   return  document.getElementById(id_name).value;
}

function sp_inner(sp_name,infor)
{

   if(navigator.appName.indexOf("Explorer") > -1)
      {
         document.getElementById(sp_name).innerText=infor;
      } 
      else
      {
        document.getElementById(sp_name).innerHTML=infor;
      }
}

function check_null(id_name,sp_name,infor)
{
    if(getvalue(id_name)==""||getvalue(id_name)==null)
   {
      sp_inner(sp_name,infor);
      return 1;
   }
   else return 0;
}

function check_email(id_name,sp_name,infor)
{
      var pat=new RegExp(/^[A-Za-z0-9._%-]+@([\-_A-Za-z0-9]+\.)+[A-Za-z0-9]{2,3}$/i);
      var result=pat.test(getvalue(id_name));
      if(!result)
      {
         sp_inner(sp_name,infor);
         return 1;
      }
      else return  0;
}

function check_pwd(id_password,id_pwd,sp_name,infor)
{
  if(getvalue(id_password)!=getvalue(id_pwd))
  {
      sp_inner(sp_name,infor);
      return 1;
  }
  else return 0;
}

function check_mobile(id_name,sp_name,infor)
{
  var myreg = /^(((13[0-9]{1})|159|(15[0-9]{1}))+\d{8})$/; 
   var result = myreg.test(getvalue(id_name));

   if(!result)
   {
      sp_inner(sp_name,infor);
       return 1;
    }
    else  return 0;
}

function check_password(id_name,sp_name,infor)
{
   var myreg = /^^[A-Za-z0-9]+$/; 
   var result = myreg.test(getvalue(id_name));
    if(getvalue(id_name).length<6||!result)
   {
        sp_inner(sp_name,infor);
        return 1;
    }
    else  return 0;
}



function set_null(id_name,sp_name)
{
   document.getElementById(id_name).value="";
   if(arguments.length>1)
   { 
     sp_inner(sp_name,"");
  }
}