function check_word()
  {
    var word=document.getElementById("word");
	if(word.value=="")
	   {
	     alert('请您输入要搜索的内容');
		 word.focus();
		 return false;
	   }
	 location.href="/search.asp?word="+trim(word.value);
  }
function change(num,s)
{
  var menu=document.getElementById("menu" + num);
  //document.write(s);
  if(s == 1)
     {
	   menu.className="menu_on";
	 }else{
	   menu.className=""
	 }
}
function trim(str) 
{ 
var str_t=str.replace(/\s+/g,"");
return str_t;
}

function AddFavorite() 
{ 
     var sURL=window.location.href.toString();
	 var sTitle=document.title.toString();
	 try 
	 { 
		 window.external.addFavorite(sURL, sTitle); 
	 } 
	 catch (e) 
	 { 
		 try 
		 { 
			 window.sidebar.addPanel(sTitle, sURL, ""); 
		 } 
		 catch (e) 
		 { 
		     try
			 {
				 window.external.AddFavorite(sURL, sTitle);
			 }
			 catch(e)
			 {
			      alert("您的浏览器不支持，请使用Ctrl+D进行添加"); 
			 }
		 } 
	 } 
 }