function research(){
    var sUrl = "";    
    var objslt = document.getElementById("sltClassCode");
    var strSlt = "";
    if(objslt != "undefined" && objslt != null)
    {
        var strSlt = "";
        for(i=0;i<objslt.length;i++){
            if(objslt[i].selected==true){
                strSlt=objslt[i].value;
                break;
            }
        }
    }
    sUrl +="_"+strSlt; 
        
    var strKeyword = document.getElementById("keyword").value;
    if(strKeyword!="请输入标题或摘要关键词进行查询" && strKeyword.length>0){
        sUrl += "_" + Base64Encode(strKeyword);
    }
    
    if(strSlt == "1009")
    {
         window.location.href = "/blog/bloglist" + Base64Encode(strKeyword) + "_1.html";
    }
    else
    {
        window.location.href = "/news/list" + sUrl + ".html";
    }
}