document.write("<form name='loginbox_1'  id='loginbox_1' method='post' onsubmit='return login_box_check()'>");
document.write("<input type='hidden'  name='loginbox' value='yes'>");
document.write("<input type='hidden'  name='Allow_Login' value='0'>");
document.write("<input type='hidden'  name='To_Url' value=''>");
document.write("<input type='hidden'  name='Back_Url' value=''>");

document.write("<ul>");
document.write("<li class='loginbox_item'>用户名：<input type='textbox' name='login_box_username' class='loginbox_textbox' maxlength='16'></li>");
document.write("<li class='loginbox_item'>密&nbsp;&nbsp;码：<input type='password' name='login_box_password' class='loginbox_textbox' maxlength='16'></li>");

document.write("<li class='loginbox_item'>验证码：<input type='textbox' name='login_box_yzm' class='loginbox_textbox_yzm' maxlength='4'>&nbsp;<img src='/incs/yzm.aspx' onclick='Login_Code_Change()' align=absmiddle border=0 id='yzcode_1'  alt='点击更换' style='cursor:pointer;width:50px;height:18px' ></li>");

document.write("<li class='loginbox_item'>&nbsp;&nbsp;<a href='/member/index.aspx?type=reg&language=cn'>注册会员</a>&nbsp;&nbsp;<input type='submit'  value='会员登陆' class='loginbox_submit'></li>");
document.write("</ul>");







document.write("</form>");



function login_box_check()
 {
   var ShowCode="1";
   if(ShowCode=="1")
    {
     document.loginbox_1.action="/member/index.aspx?type=login&language=cn";
    }
   else
    {
     document.loginbox_1.action="/member/index.aspx?type=login&language=cn&code=false";
    }

   document.loginbox_1.target="_self";
   var obj_username = document.loginbox_1.login_box_username;
   var obj_passowrd = document.loginbox_1.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 <6 || obj_passowrd.valuelength > 16)
      {
        alert("密码长度需要在6-16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;
          }


  var obj_yzm = document.loginbox_1.login_box_yzm;
  if (obj_yzm.value.length<4)
      {
        alert("请输入验证码!");
        obj_yzm.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_1");
  if(Obj.src.indexOf("yzm.aspx")>=0)
   {
    Obj.src="/incs/yzm1.aspx";
   }
  else
   {
    Obj.src="/incs/yzm.aspx"
   }
 }