zhishinew.js

数据库系统工程师的考点 难点 很值得一看的有

    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();
	}
	//alert(urltemp);
	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 checkForm(this_form)
{
	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;
	}

	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/zsr/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);
}