var auto_close_hand;
var auto_close_hand1;
var auto_close_hand2;
var is_opera_d  = (navigator.userAgent.toLowerCase().indexOf('opera') != -1);
String.prototype.trim = function()
{
return this.replace(/(^[ |　]*)|([ |　]*$)/g, "");
}
function $(s)
{
if(document.getElementById)
{
return eval('document.getElementById("' + s + '")');
}
else
{
return eval('document.all.' + s);
}
}
function $$(s)
{
return document.frames?document.frames[s]:$(s).contentWindow;
}
function $c(s)
{
return document.createElement(s);
}
function swap(s,a,b,c)
{
$(s)[a]=$(s)[a]==b?c:b;
}
function exist(s)
{
return $(s)!=null;
}
function dw(s)
{
document.write(s);
}
function hide(s)
{
$(s).style.display=$(s).style.display=="none"?"":"none";
}
function isNull(_sVal)
{
return (_sVal == "" || _sVal == null || _sVal == "undefined");
}
function removeNode(s)
{
if(exist(s)){
$(s).innerHTML = '';
$(s).removeNode?$(s).removeNode():$(s).parentNode.removeChild($(s));
}
}
function dialog()
{
var titile = '';
var auto = 'y';
var width = 240;
var height = 120;
var src = "";
var path = "http://www.sinaimg.cn/pfp/ask/images/zhishi/";
var sFunc = '<input id="dialogOk" type="button" value=" 确 定 " onclick="new dialog().reset();" /> <input id="dialogCancel" type="button" value=" 取 消 " onclick="new dialog().reset();" />';
var sClose = '<input type="image" id="dialogBoxClose" onclick="new dialog().reset();" src="' + path + 'close_blue.gif" border="0" width="16" height="16" align="absmiddle" />';
var sBody = '\
<table id="dialogBodyBox" border="0" align="center" cellpadding="0" cellspacing="6" width="100%">\
<tr height="10"><td colspan="4"></td></tr>\
<tr><td colspan="4" align="center">\
<div id="dialogMsgDiv" style="text-align:center"><div id="dialogMsg" style="font-size:12px;line-height:180%;"></div></div>\
</td></tr>\
<tr><td id="dialogFunc" colspan="4" align="center">' + sFunc + '</td></tr>\
<tr height="5"><td colspan="4" align="center"></td></tr>\
</table>\
';
var sIfram = '\
<iframe id="dialogIframBG" name="dialogIframBG" frameborder="0" marginheight="0" marginwidth="0" hspace="0" vspace="0" scrolling="no" style="position:absolute;z-index:8;display:none;"></iframe>\
';
var sBox = '\
<div id="dialogBox" style="border:1px solid #1e4775;display:none;z-index:10;width:'+width+'px;">\
<table width="100%" border="0" cellpadding="0" cellspacing="0">\
<tr height="24" bgcolor="#6795B4">\
	<td>\
		<table onselectstart="return false;" style="-moz-user-select:none;" width="100%" border="0" cellpadding="0" cellspacing="0" style="background-color:#5499dc;  height:25px; border-top:1px solid #92c3ec;">\
			<tr>\
				<td width="6" height="24"></td>\
				<td id="dialogBoxTitle" onmousedown="new dialog().moveStart(event, \'dialogBox\')" style="color:#fff;cursor:move;font-size:12px;font-weight:bold;">&nbsp;</td>\
				<td id="dialogClose" width="20" align="right" valign="middle">\
					' + sClose + '\
				</td>\
				<td width="6"></td>\
			</tr>\
		</table>\
	</td>\
</tr>\
<tr id="dialogHeight" style="height:' + height + '" valign="top">\
	<td id="dialogBody" bgcolor="#ffffff">' + sBody + '</td>\
</tr>\
</table></div>\
<div id="dialogBoxShadow" style="display:none;z-index:9;"></div>\
';
var sBG = '\
<div id="dialogBoxBG" style="position:absolute;top:0px;left:0px;width:100%;height:100%;"></div>\
';

this.show = function()
{
this.middle('dialogBox');
if ($('dialogIframBG'))
{
$('dialogIframBG').style.top = $('dialogBox').style.top;
$('dialogIframBG').style.left = $('dialogBox').style.left;
$('dialogIframBG').style.width = $('dialogBox').offsetWidth;
$('dialogIframBG').style.height = $('dialogBox').offsetHeight;
$('dialogIframBG').style.display = 'block';
}		
this.shadow();
}

this.reset = function()
{
this.close();
}

this.close = function()
{
if ($('dialogIframBG'))
{
$('dialogIframBG').style.display = 'none';
}
$('dialogBox').style.display='none';
$('dialogBoxBG').style.display='none';
$('dialogBoxShadow').style.display = "none";
$('dialogBody').innerHTML = sBody;
}
this.html = function(_sHtml)
{
$("dialogBody").innerHTML = _sHtml;
this.show();
}

this.init = function(big_msg)
{
$('dialogCase') ? $('dialogCase').parentNode.removeChild($('dialogCase')) : function(){};
var oDiv = document.createElement('span');
oDiv.id = "dialogCase";
if ('yes' == big_msg)
{
oDiv.innerHTML = sBG + sBox;
}
else
{
if (!is_opera_d)
{
	oDiv.innerHTML = sBG + sIfram + sBox;
}
else
{
	oDiv.innerHTML = sBG + sBox;
}
}
document.body.appendChild(oDiv);
$('dialogBoxBG').style.height = document.body.scrollHeight;
}

this.button = function(_sId, _sFuc)
{
if($(_sId))
{
$(_sId).style.display = '';
if($(_sId).addEventListener)
{
	if($(_sId).act)
	{
		$(_sId).removeEventListener('click', function(){eval($(_sId).act)}, false);
	}
	$(_sId).act = _sFuc;
	$(_sId).addEventListener('click', function(){eval(_sFuc)}, false);
}
else
{
	if($(_sId).act)
	{
		$(_sId).detachEvent('onclick', function(){eval($(_sId).act)});
	}
	$(_sId).act = _sFuc;
	$(_sId).attachEvent('onclick', function(){eval(_sFuc)});
}
}
}

this.shadow = function()
{
var oShadow = $('dialogBoxShadow');
var oDialog = $('dialogBox');
oShadow['style']['position'] = "absolute";
oShadow['style']['background']	= "#000";
oShadow['style']['display']	= "";
oShadow['style']['opacity']	= "0.2";
oShadow['style']['filter'] = "alpha(opacity=20)";
oShadow['style']['top'] = oDialog.offsetTop + 6;
oShadow['style']['left'] = oDialog.offsetLeft + 6;
oShadow['style']['width'] = oDialog.offsetWidth;
oShadow['style']['height'] = oDialog.offsetHeight;
}

this.open = function(_sUrl, _sMode)
{
this.show();
if(!_sMode || _sMode == "no" || _sMode == "yes"){
var _height = $('dialogHeight').style.height;
var openIframe = "<iframe width='100%' height='"+_height+"' name='iframe_parent' id='iframe_parent' src='" + _sUrl + "' frameborder='0' scrolling='" + _sMode + "'></iframe>";
$("dialogBody").innerHTML = openIframe;
}
}

this.showWindow = function(_sUrl, _iWidth, _iHeight, _sMode)
{
var oWindow;
var sLeft = (screen.width) ? (screen.width - _iWidth)/2 : 0;
var iTop = -80 + (screen.height - _iHeight)/2;
iTop = iTop > 0 ? iTop : (screen.height - _iHeight)/2;
var sTop = (screen.height) ? iTop : 0;
if(window.showModalDialog && _sMode == "m"){
oWindow = window.showModalDialog(_sUrl,"","dialogWidth:" + _iWidth + "px;dialogheight:" + _iHeight + "px");
} else {
oWindow = window.open(_sUrl, '', 'height=' + _iHeight + ', width=' + _iWidth + ', top=' + sTop + ', left=' + sLeft + ', toolbar=no, menubar=no, scrollbars=' + _sMode + ', resizable=no,location=no, status=no');
this.reset();
}
}

this.event = function(_sMsg, _sOk, _sCancel, _sClose)
{
$('dialogFunc').innerHTML = sFunc;
$('dialogClose').innerHTML = sClose;
$('dialogBodyBox') == null ? $('dialogBody').innerHTML = sBody : function(){};
if (width > 400 && height > 300)
{
$('dialogMsg') ? $('dialogMsg').innerHTML = _sMsg  : function(){};
$('dialogMsg') ? $('dialogMsg')['style']['fontWeight'] = "bold" : function(){};
$('dialogMsg') ? $('dialogMsg')['style']['fontSize'] = "15px" : function(){};
$('dialogMsg') ? $('dialogMsg')['style']['color'] = "#ff9900" : function(){};
$('dialogMsg') ? $('dialogMsg')['style']['height'] = "150px" : function(){};
}
else
{
$('dialogMsg') ? $('dialogMsg').innerHTML = _sMsg  : function(){};
}

_sOk && _sOk != "" ? this.button('dialogOk', _sOk) : $('dialogOk').style.display = 'none';
_sCancel && _sCancel != "" ? this.button('dialogCancel', _sCancel) : $('dialogCancel').style.display = 'none';
_sClose ? this.button('dialogBoxClose', _sClose) : function(){};

this.show();
}
this.set = function(_oAttr, _sVal)
{
var oShadow = $('dialogBoxShadow');
var oDialog = $('dialogBox');
var oHeight = $('dialogHeight');

if(_sVal != '')
{
switch(_oAttr)
{
	case 'title':
		$('dialogBoxTitle').innerHTML = _sVal;
		title = _sVal;
		break;
	case 'width':
		oDialog['style']['width'] = _sVal;
		width = _sVal;
		break;
	case 'height':
		oHeight['style']['height'] = _sVal;
		height = _sVal;
		break;
	case 'src':
		$('dialogMsgDiv').innerHTML = '\
			<table border="0" align="center" cellpadding="0" cellspacing="0" width="100%">\
				<tr>\
					<td width="30%" align="center"><img id="dialogBoxFace" src="' + path + 'login_wrong.gif" /></td>\
					<td id="dialogMsg" style="font-size:12px;line-height:180%;" width="70%"></td>\
				</tr>\
			</table>\
		';
		$('dialogBoxFace') ? $('dialogBoxFace').src = path + _sVal + '.gif' : function(){};
		src = _sVal;
		break;
	case 'auto':
		auto = _sVal;
}
}
this.middle('dialogBox');
oShadow['style']['top'] = oDialog.offsetTop + 6;
oShadow['style']['left'] = oDialog.offsetLeft + 6;
oShadow['style']['width'] = oDialog.offsetWidth;
oShadow['style']['height'] = oDialog.offsetHeight;
}

this.moveStart = function (event, _sId)
{
var oObj = $(_sId);
oObj.onmousemove = mousemove;
oObj.onmouseup = mouseup;
oObj.setCapture ? oObj.setCapture() : function(){};
oEvent = window.event ? window.event : event;
var dragData = {x : oEvent.clientX, y : oEvent.clientY};
var backData = {x : parseInt(oObj.style.top), y : parseInt(oObj.style.left)};
function mousemove()
{
var oEvent = window.event ? window.event : event;
var iLeft = oEvent.clientX - dragData["x"] + parseInt(oObj.style.left);
var iTop = oEvent.clientY - dragData["y"] + parseInt(oObj.style.top);
oObj.style.left = iLeft;
oObj.style.top = iTop;
$('dialogBoxShadow').style.left = iLeft + 6;
$('dialogBoxShadow').style.top = iTop + 6;
if ($('dialogIframBG'))
{
	$('dialogIframBG').style.left = iLeft;
	$('dialogIframBG').style.top = iTop;
}
dragData = {x: oEvent.clientX, y: oEvent.clientY};

}
function mouseup()
{
var oEvent = window.event ? window.event : event;
oObj.onmousemove = null;
oObj.onmouseup = null;
if(oEvent.clientX < 1 || oEvent.clientY < 1 || oEvent.clientX > document.body.clientWidth || oEvent.clientY > document.body.clientHeight){
	oObj.style.left = backData.y;
	oObj.style.top = backData.x;
	$('dialogBoxShadow').style.left = backData.y + 6;
	$('dialogBoxShadow').style.top = backData.x + 6;
	if ($('dialogIframBG'))
	{
		$('dialogIframBG').style.left = backData.y;
		$('dialogIframBG').style.top = backData.x;
	}
}
oObj.releaseCapture ? oObj.releaseCapture() : function(){};
}
}

this.hideModule = function(_sType, _sDisplay)
{
var aIframe = parent.document.getElementsByTagName("iframe");
var aType = document.getElementsByTagName(_sType);
var iChildObj, iChildLen;
for (var i = 0; i < aType.length; i++)
{
aType[i].style.display	= _sDisplay;
}
for (var j = 0; j < aIframe.length; j++)
{
iChildObj = document.frames ? document.frames[j] : aIframe[j].contentWindow;
try
{
	iChildLen = iChildObj.document.body.getElementsByTagName(_sType).length;
	for (var k = 0; k < iChildLen; k++)
	{
		iChildObj.document.body.getElementsByTagName(_sType)[k].style.display = _sDisplay;
	}
}
catch (e){}
}
}

this.middle = function(_sId)
{
try
{
var aIframe = parent.document.getElementById("iframe_parent");
}
catch (e){}
if (aIframe) {
var sClientWidth = aIframe.offsetWidth;
var sClientHeight = aIframe.offsetHeight;
var sScrollTop = 0;
} else {
var sClientWidth = parent ? parent.document.body.clientWidth : document.body.clientWidth;
var sClientHeight = parent ? parent.document.body.clientHeight : document.body.clientHeight;
var sScrollTop = parent ? parent.document.body.scrollTop : document.body.scrollTop;
}
var sleft = (document.body.clientWidth / 2) - ($(_sId).offsetWidth / 2);
var iTop = -80 + (sClientHeight / 2 + sScrollTop) - ($(_sId).offsetHeight / 2);
var sTop = iTop > 0 ? iTop : (sClientHeight / 2 + sScrollTop) - ($(_sId).offsetHeight / 2);
$(_sId)['style']['display'] = '';
$(_sId)['style']['position'] = "absolute";
$(_sId)['style']['left'] = sleft;
$(_sId)['style']['top'] = sTop;
}
}
function _error_msg_show(msg, click, icon, title)
{
click = click ? click : ' ';
icon = icon ? icon : '';
title = title ? title : '爱问知识人提示';
dg=new dialog();
dg.init();
dg.set('src', get_icon(icon));
dg.set('title', title);
dg.event(msg, click, '', click);
}

function _confirm_msg_show(msg, click_ok, click_no, title, width, height)
{
click_ok = click_ok ? click_ok : ' ';
click_no = click_no ? click_no : ' ';
title = title ? title : '爱问知识人提示';

dg=new dialog();
dg.init();
dg.set('src', get_icon(''));
dg.set('title', title);
if (width)
{
  dg.set('width', width);
}
if (height)
{
  dg.set('height', height);
}
dg.event(msg, click_ok, click_no, click_no);
$("dialogOk").value="继续提交";
$("dialogCancel").value="我要修改";
}

function _set_id_focus(idname)
{
if (idname != "")
{
try {$(idname).focus();}catch (e){}
}
}

function get_icon(icons)
{
var icon = 'login_wrong';
return icon;
}
function openWindow(_sUrl, _sWidth, _sHeight, _sTitle, _sScroll, ok)
{
if (ok == null && document.readyState != "complete")
{
setTimeout(function(){openWindow( _sUrl, _sWidth, _sHeight, _sTitle, _sScroll, 1);},500);
return false;
}
var oEdit = new dialog();
oEdit.init('yes');
oEdit.set('title', _sTitle ? _sTitle : "系统提示信息" );
oEdit.set('width', _sWidth);
oEdit.set('height', _sHeight);
oEdit.set('auto', 'n');
oEdit.open(_sUrl, _sScroll != "yes" ? 'no' : 'yes');
}
function getFrameNode(sNode){
return document.frames ? document.frames[sNode] : document.getElementById(sNode).contentWindow;
}
function strLen(key){
var l=escape(key),len
len=l.length-(l.length-l.replace(/\%u/g,"u").length)*4
l=l.replace(/\%u/g,"uu")
len=len-(l.length-l.replace(/\%/g,"").length)*2
return len
}
function zsxz(ta, zs, maxl)
{
var l = ta.value.length;//.replace(/[^\x00-\xff]/gi,'xx')
if(l > maxl)
{
ta.value = ta.value.substring(0,maxl);
}
else
{
zs.value = maxl - l;
}
}
//处理浏览器，用来选择不同的XML读取函数
var agt = navigator.userAgent.toLowerCase();
var is_opera = (agt.indexOf("opera") != -1);
var is_ie = (agt.indexOf("msie") != -1) && document.all && !is_opera;
var is_ie5 = (agt.indexOf("msie 5") != -1) && document.all;
var uniqnum_counter = (new Date).getTime();
var is_regexp = (window.RegExp) ? true : false;
var xmlhttp = null;
function UniqueNum() {  
++uniqnum_counter;  
return uniqnum_counter;
}
//创建Get请求
function StartGETRequest(url, handler)
{
xmlhttp = null;
if (is_ie) {    
var control = (is_ie5) ? "Microsoft.XMLHTTP" : "Msxml2.XMLHTTP";
try {      
xmlhttp = new ActiveXObject(control);
} catch(e) {
alert("You need to enable active scripting and activeX controls");
DumpException(e);
}
} else {
xmlhttp = new XMLHttpRequest();
}
xmlhttp.onreadystatechange = function() {handler();}
if (url.indexOf("?") != -1){
var urltemp = url + "&rand=" + UniqueNum();
} else {
var urltemp = url + "?rand=" + UniqueNum();
}
xmlhttp.open('GET', urltemp, true);
xmlhttp.send(null);	
}
//创建POST请求
function StartPOSTRequest(url, data, handler)
{
xmlhttp = null;
if (is_ie) {    
var control = (is_ie5) ? "Microsoft.XMLHTTP" : "Msxml2.XMLHTTP";
try {      
xmlhttp = new ActiveXObject(control);
} catch(e) {
alert("You need to enable active scripting and activeX controls");
DumpException(e);
}
} else {
xmlhttp = new XMLHttpRequest();
}
xmlhttp.onreadystatechange = function() {handler();}
xmlhttp.open('POST', url, true);
if (typeof(xmlhttp.setRequestHeader) != "undefined") {
xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; Charset=GB2312');
}
xmlhttp.send(data);	
}
//处理方法
function GetObjValue(objName)
{
if(document.getElementById){
return eval('document.getElementById("' + objName + '")');
}else{
return eval('document.all.' + objName);
}
}
function fetchObject(idname)
{
if (document.getElementById) {
return document.getElementById(idname);
} else if (document.all) {
return document.all[idname];
} else if (document.layers) {
return document.layers[idname];
} else {
return null;
}
}
// function to emulate document.getElementsByTagName
function fetchTags(parentobj, tag)
{
if (typeof parentobj.getElementsByTagName != 'undefined') {
return parentobj.getElementsByTagName(tag);
} else if (parentobj.all && parentobj.all.tags) {
return parentobj.all.tags(tag);
} else {
return null;
}
}
function fetchXmlValue(parentobj, tag)
{
try{
var tags = fetchTags(parentobj, tag);
return tags[0].firstChild.nodeValue;
} catch(e) {
return null;
}
}
function checkpic(this_form)
{	
var fso,f; 
if (this_form.upload_file.value.length > 0){
var filesize = 1;  
try {
fso=new ActiveXObject("Scripting.FileSystemObject");  
	f = fso.GetFile(this_form.upload_file.value); filesize = f.size;
} catch (e1) {}
if (filesize >200000 || filesize == 0) {
_error_msg_show("文件不能为空，并且小于200K");
return false;
}
}
return true;
}
function checkemail(t){
var stra=/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
if(stra.test(t))
return true;
return false;
}


 function countCharacters(str){
                var totalCount = 0;
                for (var i = 0; i < str.length; i++) {
                    var c = str.charCodeAt(i);
                    if ((c >= 0x0001 && c <= 0x007e) || (0xff60 <= c && c <= 0xff9f)) {
                        totalCount++;
                    }
                    else {
                        totalCount += 2;
                    }
                }
                return totalCount;
    }

function subString(str, len) 
{ 
    var newLength = 0; 
    var newStr = ""; 
    var chineseRegex = /[^\x00-\xff]/g; 
    var singleChar = ""; 
    var strLength = str.replace(chineseRegex,"**").length; 
    for(var i = 0;i < strLength;i++) 
    { 
        singleChar = str.charAt(i).toString(); 
        if(singleChar.match(chineseRegex) != null) 
        { 
            newLength += 2; 
        }     
        else 
        { 
            newLength++; 
        } 
        if(newLength > len) 
        { 
            break; 
        } 
        newStr += singleChar; 
    } 
     
    return newStr; 
} 

function splitstr(str,lens){
	
	var $strtmp =  new Array();
	var string = str;
	while (true) {
		var $newstr = subString(string, lens);
		var strlen = $newstr.length;
		$strtmp.push($newstr);
		string =string.substr(strlen);
		if(countCharacters(string)<lens){
			$strtmp.push(string);
			break;
		}
	}
	return $strtmp;
}

function checkForm(this_form)
{
if (jQuery("#input_comment").length>0) {
     var ans_input = jQuery("#input_comment").attr("value");
	 var ans_len = countCharacters(ans_input);
	 if(ans_len >= 25){
     if (jQuery("span[name=ans_test]").length>0) {
         var sample = jQuery("span[name=ans_test]").text();
         var res = splitstr(ans_input, 25);
              for (var i = 0; i < res.length; i++) {
                    if (countCharacters(res[i]) >= 24) {
                        var flag = sample.indexOf(res[i]);
                        if (flag >= 0) {
							_error_msg_show("您的回答已被之前网友使用，请重新编辑。");
							this_form.answer.focus();
							return false;
                        }
                    }
                            
              }
    }
 }

}


if ((this_form.answer.value == '') || (this_form.answer.value.length > 20000)) {
_error_msg_show("回答的内容长度必须为1-10000个汉字！");
this_form.answer.focus();
return false;
}
if (this_form.referto.value.length > 120) {
_error_msg_show("对不起，参考文献内容长度不能大于60个汉字！");
this_form.referto.focus();
return false;
}
var email='';
try{email=this_form.email.value;if (email=='(选填)')email='';}catch(e){email='';}
if (email!='' && !checkemail(email)) {
_error_msg_show("请填写正确的邮件地址！");
this_form.email.focus();
return false;
}
return true;
}
function showSending(){
document.getElementById("sending").style.visibility="visible";
document.getElementById("cover").style.visibility="visible";
}
function on(tdbg){
tdbg.style.background="#fff17d";
}
function off(tdbg){
tdbg.style.background="#EFF7FE";
}
function checkLogin(){
if (document.login.U_Loginname.value==""){
_error_msg_show("会员名不能为空，请输入会员名！");
document.login.U_Loginname.focus();
return false;
}
if (document.login.U_Pass.value==""){
_error_msg_show("密码不能为空，请输入密码！");
document.login.U_Pass.focus();
return false;
}
return true;
}
function getCommentHtmlList(qid, aid){
var strText;
var fError = false;
if (xmlhttp.readyState == 4){
if (xmlhttp.status == 200){			
strText = fetchXmlValue(xmlhttp.responseXML, 'body');
if (null == strText) {
	fError = true;
} else {
	fetchObject("commentsec" + qid + aid).innerHTML = strText;
}
}else{
fError = true;
}
}
if (fError) {
fetchObject("commentsec" + qid + aid).innerHTML = "";			
fetchObject("comment" + qid + aid).style.display = "none";
} else {
fetchObject("comment" + qid + aid).scrollIntoView(true);
}
}
function submitComment(qid, aid){
var strText;
var fnServerError = DisplayPostCommentError(qid, aid);
if (xmlhttp.readyState == 4){
if (xmlhttp.status == 200){
var res = fetchXmlValue(xmlhttp.responseXML, 'result');
strText = fetchXmlValue(xmlhttp.responseXML, 'body');
if (null == strText) {
	fnServerError();
} else {
	if (res.toLowerCase() == 'ok') {				
		var t_total = fetchXmlValue(xmlhttp.responseXML, 'total');
		fetchObject("commenttotal" + qid + aid).innerHTML = t_total;
		fetchObject("commentsec" + qid + aid).innerHTML = strText;
	} else {
		fetchObject("Err" + qid + aid).innerHTML = "<div><img src='http://www.sinaimg.cn/pfp/ask/images/zhishi/error_icon.gif' width=15 height=16 border=0>"+ strText +"</div>";
	}
}
}else{
fnServerError();
}
}
}
function OpenSection(qid, aid, pages){
var sectionTitleObj = fetchObject("comment" + qid + aid);
var sectionDescObj = fetchObject("commentsec" + qid + aid);
if (sectionTitleObj.style.display == 'none' || sectionTitleObj.style.display == '') {
sectionTitleObj.style.display = "block";
}
try{
if (fetchObject("commentimg" + qid + aid).src == "http://www.sinaimg.cn/pfp/i/z2/z2_zz_fbpl_da1.gif")
{
if (pages == null)
{
	fetchObject("commentimg" + qid + aid).src = "http://www.sinaimg.cn/pfp/i/z2/z2_zz_fbpl_da2.gif";
	Close(qid, aid, pages);
	return ;
}
}
else
{
fetchObject("commentimg" + qid + aid).src = "http://www.sinaimg.cn/pfp/i/z2/z2_zz_fbpl_da1.gif";
}
}catch(e){};
if (pages==null && sectionDescObj.style.display == "block")
{
Close(qid, aid, pages);
return ;
}
if (sectionDescObj.style.display == "none")
{
sectionDescObj.style.display = 'block';
}
var strA = "questionid="+ qid;
strA += "&answerid=" + aid;
if (pages >= 0)
strA += "&pages=" + pages;
StartGETRequest('/browse/zhishi_request_comment.php?'+strA, function() {getCommentHtmlList(qid, aid)});
}
function Close(qid, aid, pages)
{
try{
fetchObject("commentimg" + qid + aid).src = "http://www.sinaimg.cn/pfp/i/z2/z2_zz_fbpl_da2.gif";
}catch(e){};
fetchObject("commentsec" + qid + aid).style.display = "none";
}
function CloseComment(qid, aid)
{
if (fetchObject("err"+ qid + aid) != null) {
fetchObject("Err"+qid + aid).innerHTML = "";
fetchObject("txtComment"+qid + aid).value = "";
}
Close(qid, aid);
}
function DisplayPostCommentError(qid, aid)
{
return function(){
document.getElementById("Err"+qid+aid).innerHTML = "<div><img src='http://www.sinaimg.cn/pfp/ask/images/zhishi/error_icon.gif' width=15 height=16 border=0>服务器出现问题，请重试。</div>";
}
}
function PostComment(qid, aid)
{
var strComment = fetchObject("txtComment"+qid + aid);
var strError = "";
nCommentLength = strComment.value.length;
if (nCommentLength == 0 || nCommentLength > 200 ) {
if (strError.length == 0) {
strComment.focus();
}
}
if (nCommentLength == 0) {
strError = "<div><img src='http://www.sinaimg.cn/pfp/ask/images/zhishi/error_icon.gif' width=15 height=16 border=0>评论不能为空，请输入评论。</div>";
} else if (nCommentLength > 200) {
strError = "<div><img src='http://www.sinaimg.cn/pfp/ask/images/zhishi/error_icon.gif' width=15 height=16 border=0>评论太长，请缩短您的评论。</div>";
}
if (strError.length > 0)
{
document.getElementById("Err" + qid + aid).innerHTML = strError;
return false;
}
if (window.RegExp && window.encodeURIComponent) {
var newStrComment = encodeURIComponent(strComment.value);
} else {
var newStrComment = strComment.value;
}
var strA = "questionid="+ qid;
strA += "&answerid=" + aid;
strA += "&do=add";
strA += "&answer_flag=5";
strA += "&txtcomment="+newStrComment;
StartGETRequest('/browse/zhishi_request_comment.php?'+strA, function() {submitComment(qid, aid)});
}
function iask_submit(fn,strName)
{
if(strName == "ask")
{
fn.action = "http://iask.sina.com.cn/question/ask_new_2.php";
fn.title.value = fn.key.value;
fn.key.value = '';
fn.submit();
return false;
}
else if(strName == "know")
{
if(fn.key.value == "" || fn.key.value == "请输入查询词" || fn.key.value == "请输入问题标题")
{
fn.key.value = "请输入查询词";
fn.key.focus();
return false;
}
fn.action = "http://iask.sina.com.cn/search_engine/search_knowledge_engine.php";
fn.submit();
return false;
}
else
{
return false;
}
}
function ckwords(obj)
{
if(obj.value == "请输入查询词" || obj.value == "请输入问题标题")
{
obj.value = "";
obj.focus();
return false;
}
}
function swapPic(_sId,_sAttr,_sTxt1, _sTxt2) {
$(_sId)[_sAttr] = $(_sId)[_sAttr].indexOf(_sTxt1) > -1 ? _sTxt2 : _sTxt1;
}
function getClassify () {
return window.document.classify;
}
function setSize (w, h) {
getClassify ().width = w;
getClassify ().height = h;
}
function setClassifyObj (type, bgcolor, classid, args) {
var size = args.split ("|");
var query = "sw=" + size[0] + "&wi=" + size[1] + "&hi=" + size[2] + "&t=" + type + "&id=" + classid;
var uri = "http://www.sinaimg.cn/pfp/iask/images/zhishi/classify.swf?";
var clo = '<object style="z-index: -1;" classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0" id="classify" width="406" height="77"  align="middle">'
+ '<param name="allowScriptAccess" value="always" />'
+ '<param name="movie" value="'+ uri +'?' + query + '" />'
+ '<param name="quality" value="high" />'
+ '<param name="bgcolor" value="' + bgcolor + '" />'
+ '  <embed src="'+ uri + query + '" quality="high" bgcolor="'+ bgcolor +'" swLiveConnect=true id="classify" name="classify" width="406" height="77" align="middle" allowScriptAccess="always" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />'
+ '</object>'
document.write (clo);
}
function fetch_cookie(name)
{
cookie_name = name + "=";
cookie_length = document.cookie.length;
cookie_begin = 0;
while (cookie_begin < cookie_length) {
value_begin = cookie_begin + cookie_name.length;
if (document.cookie.substring(cookie_begin, value_begin) == cookie_name) {
var value_end = document.cookie.indexOf (";", value_begin);
if (value_end == -1) {
	value_end = cookie_length;
}
return unescape(document.cookie.substring(value_begin, value_end));
}
cookie_begin = document.cookie.indexOf(" ", cookie_begin) + 1;
if (cookie_begin == 0) break;
}
return null;
}
function getcuid()
{
var uid = fetch_cookie('nick');
if (uid == null)
{
return false;
}
var s = uid.lastIndexOf('(');
if (s == -1)
return false;
muid=uid.substring(s+1, uid.length-1);
return true;
}
function isa(sss)
{
if (sss > 0)
{
if (muid==sss)
{
return true;
}
return false;
}
for (var j = 0; j < anum; j ++)
{
if (muid == aids[j]) {
return true;
}
}
return false;
}
function s_b(idname, qs1, qs2, vs, ks, t, sss)
{
switch(t)
{
case 1:
var o = isq();
break;
case 2:
var o = isa(sss);
break;
case 4:
var o = isq() || qtime==1;
break;
case 5:
var o = isa(sss) || qtime==1;
break;
case 6:
var o = isq() || isa(sss) || qtime==1;
break;
default:
var o = isq() || isa(sss);
break;
}
if (qtype == 1 || qtype == 4){
if (anum > 0) {
show_hidden(idname, qs1, o);
}else {
show_hidden(idname, qs2, o);
}		
} else if (qtype == 2) {
show_hidden(idname, vs, o);
}else if (qtype == 3) {
show_hidden(idname, ks, o);
}
return false;	
}
function show_hidden(idname, t, iso)
{
obj = $(idname);
if (!obj){ return false;}	
if (t == 0) {
if (obj.style.display != "none") { obj.style.display = "none";}
return true;
}
if (t == 1) {
if (obj.style.display == "none") { obj.style.display = ""; }
return true;
}
if (t == 2) {
if (iso) {
if (obj.style.display == "none") 
	obj.style.display = "";
} else {
if (obj.style.display != "none") 
	obj.style.display = "none";
}
return true;
}
if (t == 3) {
if (iso) {
if (obj.style.display != "none") 
	obj.style.display = "none";
} else {			
if (obj.style.display == "none")
	obj.style.display = "";
}
return true;
}	
return false;
}
function show_img(idname, uid)
{
obj = $(idname);
if (!obj) return false;
var nuid = uid;
if (!nuid)
{
var nuid=idname.substring(1, idname.length);
uid = nuid;
}
if (nuid.length < 5)
nuid = "000"+uid;
obj.src="http://q.sinaimg.cn/logo/"+nuid.substring(nuid.length, nuid.length-2)+"/"+nuid.substring(nuid.length-2, nuid.length-4)+"/50_"+uid+".gif";
}
function ctlEvent(event) 
{
if(isSubmited == false && (event.ctrlKey && event.keyCode == 13) || (event.altKey && event.keyCode == 83)) {
if(checkForm(this.document.form2)){
this.document.form2.submit();
}
}
}
function do_submit(args) {
var fn = document.getElementById ('zsForm');
try {
fn.classid.value = getClassify ().GetVariable ("id");
fn.gjss.value = 1;
}catch (ex) {	}
return iask_submit (fn, args);
}
function fShow (){
document.getElementById ('d1').style.visibility = "visible";
}
function fHide (){ 
document.getElementById ('d1').style.visibility = "hidden";
document.getElementById ('z2ss_r').src="http://i2.sinaimg.cn/pfp/iask/images/zhishi/pictures_clf/pic03/btn_clf_001.gif";
}
function ss_on (n){
var z2 = document.getElementById ('z2ss_r');
if(z2.src.indexOf("z2_ss_r4")!=-1) { return false; }
z2.src="http://i2.sinaimg.cn/pfp/iask/zsr/z2_ss_r"+n+".gif";
}
function ss_of (n){
var z2 = document.getElementById ('z2ss_r');
if(z2.src.indexOf("z2_ss_r4")!=-1) { return false; }
z2.src="http://i2.sinaimg.cn/pfp/iask/zsr/z2_ss_r"+n+".gif";
  if(n==1){z2.src="http://i2.sinaimg.cn/pfp/iask/images/zhishi/pictures_clf/pic03/btn_clf_001.gif";}
}