function load_img(id,url)
{
    var t = 5000;
    var p = document.getElementById(id);
    if(!p) return;
    var imgs = p.getElementsByTagName("img");
    if(!imgs) return;
    var show = function(){
        if(tm) clearTimeout(tm);
        for(var i=0; i< imgs.length ; i++){
            if(imgs[i].className == "waiting"){
                imgs[i].style.display = "none";
            }
        }
        var im = document.createElement("img");
        im.src = url;
        im.style.border = 0;
        p.appendChild(im);
    }
    var tm = setTimeout(show, t);
}

function checkQuestion(this_form)
{
	this_form.elements["title"].value = this_form.elements["p"].value;
    this_form.action="http://ask.koubei.com/question/index";
    this_form.submit();

    return true;
}

function checkSearch(this_form)
{
    var p = this_form.elements["p"].value.replace(/[\'\"]+/g, " ");
    p = p.replace(/^[ 　]+|[ 　]+$/g, "");
    p = p.replace(/[ 　]+/g, " ");
    this_form.p.value = p;
    if(p == "" || p == "请输入查询词")
    {
        this_form.elements["p"].value = "请输入查询词";
        this_form.elements["p"].focus();
        if(this_form.elements["p"].setSelectionRange)
        {
            this_form.elements["p"].setSelectionRange(0,this_form.p.value.length);
        }
        else
        {
            this_form.elements["p"].select();
        }
        return false;
    }

    this_form.elements["p"].value = p;
    this_form.action="/search/search_result";

	return true;
}

function checkAdvanceSearch(ref)
{
    ref.href = "/search/search_advance";

    keyword = document.forms["multi_submit"].elements["p"].value;
    if(typeof encodeURIComponent == 'function')
    {
        keyword = encodeURIComponent(keyword);
    }
    else
    {
        keyword = "";
    }
    if(keyword != "")
    {
        ref.href += "?title=" + keyword;
    }

    return true;
}

function URLEncode(plaintext )
{
 var SAFECHARS = "0123456789" + // Numeric
 "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + // Alphabetic
 "abcdefghijklmnopqrstuvwxyz" +
 "-_.!~*'()"; // RFC2396 Mark characters
 var HEX = "0123456789ABCDEF";
 var encoded = "";
 for (var i = 0; i < plaintext.length; i++ ) {
 var ch = plaintext.charAt(i);
 if (ch == " ") {
 encoded += "+"; // x-www-urlencoded, rather than %20
 } else if (SAFECHARS.indexOf(ch) != -1) {
 encoded += ch;
 } else {
 var charCode = ch.charCodeAt(0);
 if (charCode > 255) {
 encoded += "+";
 } else {
 encoded += "%";
 encoded += HEX.charAt((charCode >> 4) & 0xF);
 encoded += HEX.charAt(charCode & 0xF);
 }
 }
 } // for
 return encoded;
};
function rd_clk(path,ur) {
 var newurl;
 if (document.images){
 ur = URLEncode(ur);
 newurl="http://cn.rd.yahoo.com/home/portal/hp/"+ path + 'url='+ur+"/" + "*" + "http://cn.yimg.com/search/yisou/clk.gif";
 (new Image()).src=newurl;
 }
 return true;
}
function submit_frm(selItem){
     var p = selItem;
     if(!p) return;
     var ac = p.elements['select'].value;
     var n = p.elements['select'].options[p.elements['select'].selectedIndex].id;
     var srhurl = ac.substring(0,ac.indexOf(".cn")+3);
     switch(n){
         case "bbs" :
             srhurl = "http://cool.yahoo.com.cn/";
             break;
         case "movie" :
             srhurl = "http://ys.cn.yahoo.com/";
             break;
         case "web":
         	srhurl = "http://www.yahoo.com.cn";
         	break;
         case "space" :
              srhurl = "http://i.cn.yahoo.com";
              break;
          case "club" :
          srhurl = "http://club.cn.yahoo.com";
            break;
            case "bbs":
            srhurl = "http://cool.yahoo.com.cn/";
            break;
            case "music":
            srhurl = "http://music.yahoo.com.cn/";
            break;
            case "ks":
            srhurl = "http://ask.koubei.com" ;
            break;
     }
     p.elements['p'].value = p.elements['p'].value.replace(/^\s+$/,'');
     if(p.elements['p'].value == ""){
        if(srhurl == ""){
            p.action = "http://www.yahoo.com.cn";
        }else{
            p.action = srhurl;
        }
        this.method = "post";
        window.open(srhurl);
        return false;
    }else{
         p.action = ac;
    }
    if (ac == "http://i.cn.yahoo.com/srch/ilst"){
			p.nn.value = p.elements['p'].value;
				}
	else {
			p.ei.value = "utf-8";
	} 
	/*
   if(ac.indexOf("combo.yahoo.com.cn")>0)
     p.elements['t'].value='2';
   else
      p.elements['t'].value='';*/
    p.submit();
    return false;
}
<!-- ksw8.search.cnb.yahoo.com compressed/chunked Sat Nov  7 17:10:05 CST 2009 -->