function dosubmit()
{
    var keyword=document.forms["Search"].elements["keyword"].value;
    keyword=keyword.replace(/^\s+|\s+$/g,"");
    if(keyword.length==0){
        alert("ÇëÊäÈë¹Ø¼ü×Ö£¡");
        return false;
    }
    else{
        document.forms["Search"].action="/search/do.html?tag=1&type=0&word=" + escape(keyword);
    }
}