//动态设置iframe高度
var getFFVersion=navigator.userAgent.substring(navigator.userAgent.indexOf("Firefox")).split("/")[1]
//extra height in px to add to iframe in FireFox 1.0+ browsers
var FFextraHeight=getFFVersion>=0.1? 16 : 0 

function dyniframesize(iframename) {
  var pTar = null;
  if (document.getElementById){
    pTar = document.getElementById(iframename);
  }
  else{
    eval('pTar = ' + iframename + ';');
  }
  if (pTar && !window.opera){
    //begin resizing iframe
    pTar.style.display="block"
    
    if (pTar.contentDocument && pTar.contentDocument.body.offsetHeight){
      //ns6 syntax
      pTar.height = pTar.contentDocument.body.offsetHeight+FFextraHeight; 
    }
    else if (pTar.Document && pTar.Document.body.scrollHeight){
      //ie5+ syntax
      pTar.height = pTar.Document.body.scrollHeight;
    }
  }
}

//调查申请验证
function isValid(form)
{
	if(form.name.value == "")
	{
		alert("请输入您的姓名！");
		form.name.focus();
		return false;
	}
	else if(form.phone.value == "")
	{
		alert("请输入您的电话！");
		form.phone.focus();
		return false;
	}
	else if(form.address.value == "")
	{
		alert("请输入您的通信地址！");
		form.address.focus();
		return false;
	}
	else if(form.title.value == "")
	{
		alert("请输入理由！");
		form.title.focus();
		return false;
	}
	else if(form.content.value == "")
	{
		alert("请输入内容！");
		form.content.focus();
		return false;
	}
	else
	{
		return true;
	}
}

//删除前后空格
function LTrim(s)
{
	for(var i=0;i<s.length;i++)
		if(s.charAt(i)!=' ')
		 return s.substring(i,s.length);
	 return "";
}
function RTrim(s)
{
	for(var i=s.length-1;i>=0;i--)
		if(s.charAt(i)!=' ')
			return s.substring(0,i+1);
		return "";
}
function Trim(s)
{
	return RTrim(LTrim(s));
}

//显示导航
function createPageHTML(_nPageCount, _nCurrIndex, _sPageName, _sPageExt)
{
	var nCurrIndex = _nCurrIndex || 0;
	document.write("当前第" + (nCurrIndex+1) + "页 | 共" + _nPageCount + "页 | ");
	
	if(nCurrIndex == 0)
	{
		document.write("首页 | ");
		document.write("上一页 | ");
		if(_nPageCount > 1)
		{
			document.write("<a class=\"h12\" href=\""+_sPageName+"_" + (nCurrIndex+1) + "."+_sPageExt+"\">下一页</a> | ");
			document.write("<a class=\"h12\" href=\""+_sPageName+"_" + (_nPageCount-1) + "."+_sPageExt+"\">尾页</a>");
		}
		else
		{
			document.write("下一页 | ");
			document.write("尾页");
		}
	}
	else if(nCurrIndex == _nPageCount-1)
	{
		document.write("<a class=\"h12\" href=\""+_sPageName+"."+_sPageExt+"\">首页</a> | ");
		if(nCurrIndex > 1)
		{
			document.write("<a class=\"h12\" href=\""+_sPageName+"_" + (nCurrIndex-1) + "."+_sPageExt+"\">上一页</a> | ");
		}
		else
		{
			document.write("<a class=\"h12\" href=\""+_sPageName+"."+_sPageExt+"\">上一页</a> | ");
		}
		document.write("下一页 | ");
		document.write("尾页");
		
	}
	else
	{
		document.write("<a class=\"h12\" href=\""+_sPageName+"."+_sPageExt+"\">首页</a> | ");
		if(nCurrIndex == 1)
		{
			document.write("<a class=\"h12\" href=\""+_sPageName+ "."+_sPageExt+"\">上一页</a> | ");
		}
		else
		{
			document.write("<a class=\"h12\" href=\""+_sPageName+"_" + (nCurrIndex-1) + "."+_sPageExt+"\">上一页</a> | ");
		}
		if(nCurrIndex == _nPageCount-1)
		{
			document.write("<a class=\"h12\" href=\""+_sPageName+"_" + (_nPageCount-1) + "."+_sPageExt+"\">下一页</a> | ");
		}
		else
		{
			document.write("<a class=\"h12\" href=\""+_sPageName+"_" + (nCurrIndex+1) + "."+_sPageExt+"\">下一页</a> | ");
		}
		document.write("<a class=\"h12\" href=\""+_sPageName+"_" + (_nPageCount-1) + "."+_sPageExt+"\">尾页</a>");
	}
	
}

//===============goto()直接跳转函数=============================================
function goto(_nPageCount, _nCurrIndex, _sPageName, _sPageExt)
{
	var page = document.getElementById("CP").value;
	if(isNaN(page))
	{
		alert("请输入正确的页码！");
	}
	else
	{
		var pagenum = parseInt(page, 10);
		if(pagenum < 1 || pagenum > _nPageCount) 
		{
			alert("请输入正确的页码！");
		}
		else
		{
			if(pagenum == 1)
				document.location.href = _sPageName+"."+_sPageExt;
			else
				document.location.href = _sPageName+"_" + (pagenum-1) +"."+_sPageExt;
		}
	}
}

//设置页码
function setPagenum(_nCurrIndex)
{
	var nCurrIndex = _nCurrIndex || 0;
	document.getElementById("CP").value = _nCurrIndex + 1;
}

//设置颜色
function changeChnlFont(_chnlnames)
{
	var aryChnl = _chnlnames.split(";");
	for(var i=1; i<aryChnl.length; i++)
	{
		
		if(document.getElementById("T"+aryChnl[i]) != null)
		{
			document.getElementById("T"+aryChnl[i]).innerHTML = "<font color=\"#FA5505\"><strong>" + document.getElementById("T"+aryChnl[i]).innerHTML + "</strong></font>";
		}
		else if(document.getElementById(aryChnl[i]) != null)
		{
			//alert(document.getElementById(aryChnl[i]).innerHTML);
			document.getElementById(aryChnl[i]).innerHTML = "<font color=\"#ffff66\">" + document.getElementById(aryChnl[i]).innerHTML + "</font>";
		}
	}
}

//设置颜色
function changeFont(_ChannelID)
{
	document.getElementById(_ChannelID).className = "li";
}

//隐藏频道名
function hideChannel(_ChannelID)
{
	document.getElementById(_ChannelID).style.display = "none";
}

//输出序号
function writeIndex(_index, _url, _pagesize)
{
	var pagenum = 0;
	if(_url.indexOf("_") > 0)
	{
		pagenum = parseInt(_url.substring(_url.indexOf("_") + 1));
	}

	_index = pagenum * _pagesize + _index;

	var sIndex = "" + _index;
	while(sIndex.length <= 4)
	{
		sIndex = "0" + sIndex;
	}

	document.write(sIndex);
}

//如果doctitle2不为空，则输出doctitle2，否则输出doctitle
function writeTitle(_url, _docpeople, _doctitle, _class, _titlecolor, _orgdocpeople, _orgdoctitle)
{
	document.write("<a href=\"" + _url + "\" target=\"_blank\"");
	//输出css
	if(_class != null && _class != "")
	{
		document.write(" class=\"" + _class + "\"");
	}
	
	//输出链接title
	if(_orgdocpeople != null && _orgdocpeople != "")
	{
		document.write(" title=\"" + _orgdocpeople + "\"");
	}
	else if(_orgdocpeople != null && _orgdocpeople != "")
	{
		document.write(" title=\"" + _orgdocpeople + "\"");
	}

	document.write(">");
	
	//输出标题颜色
	if(_titlecolor != null && _titlecolor != "")
	{
		document.write("<font color=\"" + _titlecolor + "\">");
	}

	//输出标题
	if(_docpeople != null && _docpeople != "")
	{
		document.write(_docpeople);
	}
	else
	{
		document.write(_doctitle);
	}
	//输出标题颜色
	if(_titlecolor != null && _titlecolor != "")
	{
		document.write("</font>");
	}
	document.write("</a>");
}

//检索
function setSearchword(form)
{
	//检索词
	var keyword = Trim(form.keyword.value);
	if(keyword == "")
	{
		alert("请输入检索词！");
		return false;
	}
	else if(keyword.indexOf("'") >= 0)
	{
		alert("检索词中不能含有单银号“'”！");
		return false;
	}
	
	//字段
	if(form.searchfield != null)
	{
		var field = form.searchfield.value;
		if(field == "")
		{
			keyword = "DOCAUTHOR='%" + keyword + "%' OR DOCTITLE='" + keyword + "' OR DOCCONTENT='" + keyword + "'";
		}
		else if(field == "DOCAUTHOR")
		{
			keyword = field + "='%" + keyword + "%'";
		}
		else
		{
			keyword = field + "='" + keyword + "'";
		}
	}
	
	//数据库
	var aryDb = document.getElementsByName("searchdb");
	var mydb="";
	if(aryDb != null)
	{
		for(var i=0; i<aryDb.length; i++)
		{
			if(aryDb[i] != null && aryDb[i].checked)
				{ //alert(aryDb[i].value);
				  mydb=mydb+aryDb[i].value+",";
				}
			
		}
	}
  
    if( mydb.length==0)
		mydb="75007";
	else
		mydb=mydb.substring(0,mydb.length-1);
    
	//频道
	if(form.chnlname != null)
	{
		keyword = keyword + " and chnlname='" + form.chnlname.value + "'";
	}

	form.searchword.value = keyword;
	form.action="/cnss/searchcnss.jsp?channelid="+mydb;
	//alert(keyword);
	return true;




}


//设置热点关键词
function changeHotword(obj)
{
	if(obj != null && obj.value != "")
	{
		document.searchform.keyword.value = obj.value;
	}
}
//高级检索

//普通检索
function setSearchword_gj(form)
{
	var keyword = form.keyword.value;
	//高级检索
	if(form.Relation != null)
	{
		var sRel = form.Relation.value;
		sRel="and";
		if(keyword != "")
		{
			keyword = "DOCTITLE='" + keyword + "'";
		}
		if(form.doccontent != null && form.doccontent.value != "")
		{
			if(keyword != "") keyword = keyword + " " + sRel + " ";
			keyword = keyword + "DOCCONTENT='" + form.doccontent.value + "'";
		}
		if(form.docsource != null && form.docsource.value != "")
		{
			if(keyword != "") keyword = keyword + " " + sRel + " ";
			keyword = keyword + "CHNLNAME='%" + form.docsource.value + "%'";
		}
		if(form.docreltime != null && form.docreltime.value != "")
		{
			if(keyword != "") keyword = keyword + " " + sRel + " ";
			keyword = keyword + "DOCRELTIME>='" + form.docreltime.value + "'";
		}
		if(form.docreltime2 != null && form.docreltime2.value != "")
		{
			if(keyword != "") keyword = keyword + " " + sRel + " ";
			keyword = keyword + "DOCRELTIME<='" + form.docreltime2.value + "'";
		}
		if(form.docsource != null && form.docsource.value != "")
		{
			if(keyword != "") keyword = keyword + " " + sRel + " ";
			keyword = keyword + "CHNLNAME='%" + form.docsource.value + "%'";
		}
		if(form.dockeywords != null && form.dockeywords.value != "")
		{
			if(keyword != "") keyword = keyword + " " + sRel + " ";
			keyword = keyword + "DOCKEYWORDS='%" + form.dockeywords.value + "%'";
		}
	}

	//普通检索
	if(keyword == "")
	{
		alert("请输入检索词！")
		return false;
	}
	
	if(form.secondsearch != null)
	{
		if(form.searchword.value != "" && form.secondsearch.checked)
		{
			keyword = keyword + " and " + form.searchword.value;
		}
	}

	if(form.chnlname != null && form.chnlname != "")
	{
		if(keyword.indexOf("DOCTITLE"))
		keyword = "DOCTITLE='" + keyword + "' and (CHNLNAME='" + form.chnlname.value + "')";
	}

	form.searchword.value = keyword;
}

function sendRecommend(form) 
{
	var str0,str1,str2,str3,str4,str;


	if (!validEmail(form.friendEmail.value))
	{
		alert(' 朋友的Email可能打错了或为空的！');
		return false;
	}

	var sInfo = "◆◆◆中国社会保障网新闻◆◆◆\n";
	sInfo += "您好!\n";
	sInfo += "您的朋友向您推荐中国社会保障网新闻:\n";
	sInfo += "“" + form.title.value + "”\n";
	sInfo += "链接网址是：\n" + this.location;
	form.Subject.value = "推荐新闻";
	form.Context.value = sInfo;
	form.action="mailto:" + form.friendEmail.value;
	
	return true;
}

function validEmail(_email) 
{

  if (_email == "" || (_email.indexOf ('@') == -1) || (_email.indexOf ('.') == -1))
      return false;
  return true;
}

function setAppendix() 
{
	if(document.getElementById("idappendix") != null && document.getElementById("idappendix").innerHTML != "")
	{
		document.getElementById("idappendixdesc").style.display = "block";
		document.getElementById("idappendixlist").style.display = "block";
	}
}