document.write("<div class='fs2'>资源搜索：</div>"
                +"<div class='fs3'><input type='text' id='fs_keywords' name='fs_keywords' /></div>"
                +"<div class='fs4' id='fs_type_div'></div>"
                +"<div class='fs4' id='fs_subject_div'></div>"
                +"<div class='fs4' id='fs_srctype_div'></div>"
                +"<div class='fs5'><img src='/images/btn_serch.gif' alt='点击搜索' onclick='doserch()'/></div>");

function doserch()
{
    var keywords=document.getElementById("fs_keywords").value.trim();
    var serchtype=document.getElementById("fs_type").value;
    var srctype=document.getElementById("fs_srctype").value;
    var subject=document.getElementById("fs_subject").value;
    
    if(keywords.length<1)
    {
        alert("关键字不能为空");
        return;
    }
    var targetUrl="/serch/"+serchtype+subject+"/"+srctype+"/1/"+keywords;
    window.location.href=targetUrl;
}
            
function completefilesrch()
{
    autoHidden("currentplace");
        document.getElementById("fs_type_div").innerHTML="<select id=\"fs_type\" name=\"fs_type\">"
            +"\r\n<option value=0>按标题</option>"
            +"\r\n<option value=1>按上传人</option>"
            //+"\r\n<option value=2>按关键字</option>"
            +"</select>\r\n";
            
        getUrl3("/getsrctypelist.htm",typelistComplete);       
}
function typelistComplete()
{
    if(4==httpRequest3.readyState)
    {
        if(200==httpRequest3.status)
        {
            var textInfo = httpRequest3.responseText;
            var optionText="\r\n<option value=\"0\">所有类型</option>\r\n"+textInfo;
            document.getElementById("fs_srctype_div").innerHTML="<select id=\"fs_srctype\" name=\"fs_srctype\">"+optionText+"</select>";
            getUrl3("/getsubjectlist.htm",subjectlistComplete);
        }
    } 
}

function subjectlistComplete()
{
    if(4==httpRequest3.readyState)
    {
        if(200==httpRequest3.status)
        {
            var textInfo = httpRequest3.responseText;
            var optionText="\r\n<option value=\"0\">全部学科</option>"+textInfo;
            optionText=optionText.replace("<option value=\"1\">无关</option>","");
            document.getElementById("fs_subject_div").innerHTML="<select id=\"fs_subject\" name=\"fs_subject\" >"+optionText+"</select>";
            
            var topUrl = window.top.document.location.href;
            if (/serch\/([0,1]{1})(\d+)\/(\d+)\/\d+\/([^\f\n\r\t\v]{1,300})/gi.test(topUrl))
            {
                try
                {
                    document.getElementById("fs_type").value=parseInt(RegExp.$1);
                    document.getElementById("fs_subject").value=parseInt(RegExp.$2);
                    document.getElementById("fs_srctype").value=parseInt(RegExp.$3);
                    document.getElementById("fs_keywords").value=document.getElementById("srcword").value;
                }
                catch(ex)
                {                    
                }
            }
        }
    } 
}
function getUrl3(url,funcName)
{
        if (typeof XMLHttpRequest != 'undefined')
        {
            httpRequest3 = new XMLHttpRequest();
        }
        else if (typeof ActiveXObject != 'undefined')
        {
            httpRequest3 = new ActiveXObject('Microsoft.XMLHTTP');
        }
        if (httpRequest3)
        {
            httpRequest3.open('POST', url, true);//true为异步
            httpRequest3.onreadystatechange=funcName;
            httpRequest3.send("");
        }
 }