// JavaScript Document
//取时间
function   PageDate()   
  {   
  currentDate   =   new   Date()   
  with   (currentDate)   
                      {   
  day=getDay()   
  month=getMonth()+1   
  string=getFullYear()+'年'+month+'月'+getDate()+'日'   
  }   
  if   (day==1){string +=('(一)')}   
  if   (day==2){string +=('(二)')}   
  if   (day==3){string +=('(三)')}   
  if   (day==4){string +=('(四)')}   
  if   (day==5){string +=('(五)')}   
  if   (day==6){string +=('(六)')}   
  if   (day==0){string +=('(日)')}     
  return string;
  }  
 //返回一个DOCUMENT对象
function $$(e)
{
	return document.getElementById(e);
}

var  $S = function(element) {
	var el;
	if(typeof element == 'string') el = document.getElementById(element);
	else el = element;
	if(!el) return null;
	else return el;
	};

//设为首页
function setHomepage()
{
 if (document.all)
    {
        document.body.style.behavior='url(#default#homepage)';
  document.body.setHomePage('http://www.biaaa.com');
 
    }
    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','http://www.biaaa.com');
 }
}

var $E = {
	//事件绑定
	bind:function(ele,ename,fn) {
		if(document.addEventListener) return $S(ele).addEventListener(ename,fn,false);
		else if(document.attachEvent) return $S(ele).attachEvent("on"+ename,fn);
		else return null;		
		},	
    //是否为CSS
	isCss:function(ele,c) {
	var classes = $S(ele).className;
    if(!classes) return false;
    if(classes == c) return true;
		},
	//CSS添加
	addCss:function(ele,c) {
	if($E.isCss(ele,c)) return ;
    if($S(ele).className) c = " " + c;
    ele.className +=c;	
		},
	//CSS删除
	removeCss:function(ele,c) {
	$S(ele).className = $S(ele).className.replace(new RegExp("\\b"+c+"\\b\\s*","g"),"");
		}
};