var Browser = new Object();
Browser.isMozilla = (typeof document.implementation != 'undefined') && (typeof document.implementation.createDocument != 'undefined') && (typeof HTMLDocument != 'undefined');
Browser.isIE = window.ActiveXObject ? true : false;
Browser.isFirefox = (navigator.userAgent.toLowerCase().indexOf("firefox") != - 1);
Browser.isSafari = (navigator.userAgent.toLowerCase().indexOf("safari") != - 1);
Browser.isOpera = (navigator.userAgent.toLowerCase().indexOf("opera") != - 1);
function $(id)
{
  return document.getElementById(id);
}

function htmlEncode(text)
{
  return text.replace(/&/g, '&amp;').replace(/"/g, '&quot;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
}

function trim( text )
{
  if (typeof(text) == "string")
  {
    return text.replace(/^\s*|\s*$/g, "");
  }
  else
  {
    return text;
  }
}

function validator( val )
{
  switch (typeof(val))
  {
    case 'string':
      return validator.trim(val).length == 0 ? true : false;
      break;
    case 'number':
      return val == 0;
      break;
    case 'object':
      return val == null;
      break;
    case 'array':
      return val.length == 0;
      break;
    default:
      return true;
  }
}

function isNumber(val)
{
  var reg = /[\d|\.|,]+/;
  return reg.test(val);
}

function isInt(val)
{
  var reg = /\d+/;
  return reg.test(val);
}

function isEmail( email )
{
  var reg1 = /([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)/;

  return reg1.test( email );
}

function fixEvent(e)
{
  var evt = (typeof e == "undefined") ? window.event : e;
  return evt;
}

function srcElement(e)
{
  if (typeof e == "undefined") e = window.event;
  var src = document.all ? e.srcElement : e.target;

  return src;
}

function isTime(val)
{
  var reg = /^\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}$/;
  return reg.test(val);
}

function rowindex(tr)
{
  if (Browser.isIE)
  {
    return tr.rowIndex;
  }
  else
  {
    table = tr.parentNode.parentNode;
    for (i = 0; i < table.rows.length; i ++ )
    {
      if (table.rows[i] == tr)
      {
        return i;
      }
    }
  }
}

document.getCookie = function(sName)
{
  var aCookie = document.cookie.split("; ");
  for (var i=0; i < aCookie.length; i++)
  {
    var aCrumb = aCookie[i].split("=");
    if (sName == aCrumb[0])
      return unescape(aCrumb[1]);
  }
  return null;
}

document.setCookie = function(sName, sValue, sExpires)
{
  var sCookie = sName + "=" + encodeURIComponent(sValue);

  if (sExpires != null)
  {
    sCookie += "; expires=" + sExpires;
  }

  document.cookie = sCookie;
}

document.removeCookie = function(sName)
{
  document.cookie = sName + "=" + escape(sValue) + "; expires=Fri, 31 Dec 1999 23:59:59 GMT;";
}

function addCookie(url,urlname)
{

 if (document.all){
      window.external.addFavorite(url,urlname);
    }
    else(window.sidebar)
    {
       window.sidebar.addPanel(urlname,url,"");
 }
}

function setHomepage(url)
{
 if (document.all)
    {
        document.body.style.behavior='url(#default#homepage)';
  document.body.setHomePage(url);
 
    }
    else if (window.sidebar)
    {
    if(window.netscape)
    {
         try
   {  
            netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");  
         }  
         catch (e)  
         {  
    alert( "该操作被浏览器拒绝，如果想启用该功能，请在地址栏内输入 about:config,然后将项 signed.applets.codebase_principal_support 值该为true" );  
         }
    } 
    var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components. interfaces.nsIPrefBranch);
    prefs.setCharPref('browser.startup.homepage',url);
 }
}



function MM_showHideLayers(a,b) { 
 if (b=="hide"){
	 menu1.style.display="none"
	 }else
	 {
	 menu1.style.display=""
	 }
 
}