function LoadLoginBox_()
{
var LoginBoxHtml="<form name='loginbox_'  id='loginbox_' method='post' onsubmit='return login_box_check_()'>";
LoginBoxHtml+="<input type='hidden'  name='loginbox' value='yes'>";
LoginBoxHtml+="<input type='hidden'  name='Allow_Login' value=''>";
LoginBoxHtml+="<input type='hidden'  name='To_Url' value=''>";
LoginBoxHtml+="<input type='hidden'  name='Back_Url' value=''>";







LoginBoxHtml+="</form>";

document.write("<div class='loginbox'>"+LoginBoxHtml+"</div>");
}
LoadLoginBox_();

function login_box_check_()
 {
   var ShowCode="";
   if(ShowCode=="1")
    {
     document.loginbox_.action="/member/index.aspx?type=login&language=";
    }
   else
    {
     document.loginbox_.action="/member/index.aspx?type=login&language=&code=false";
    }

   document.loginbox_.target="_self";
   var obj_username = document.loginbox_.login_box_username;
   var obj_passowrd = document.loginbox_.login_box_password;
   var username_checked,pass_checked;
  if (obj_username.value.length <4 || obj_username.value.length > 16)
      {
        alert("用户名长度需要在4-16之间!");
        obj_username.focus();
        return false;
      }

   if(!IsStr_(obj_username.value))
          {
            alert("用户名只能由数字，字母和下划线组成!");
            obj_username.focus();
            return false;
          }

  if (obj_passowrd.value.length <5 || obj_passowrd.valuelength > 16)
      {
        alert("密码长度需要在5-16之间!");
        obj_passowrd.focus();
        return false;
      }

   if(!IsStr_(obj_passowrd.value))
          {
            alert("密码只能由数字，字母和下划线组成!");
            obj_passowrd.focus();
            return false;
          }


   return true;
 }

function IsStr_(temp)
  {
	validStr=new String("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_");
	for(i=0;i<temp.length;i++)
	{
		if(validStr.indexOf(temp.charAt(i))==-1)
		{
	      return false;
		}
	}
	
	return true;
  }

function  Login_Code_Change_()
 {
  Obj=document.getElementById("yzcode_");
  if(Obj.src.indexOf("yzm.aspx")>=0)
   {
    Obj.src="/incs/yzm1.aspx";
   }
  else
   {
    Obj.src="/incs/yzm.aspx"
   }
 }