var Browser=new Object();
Browser.isMozilla=(typeof document.implementation !='undefined')&&(typeof document.implementation.createDocument !='undefined')&&(typeof HTMLDocument!='undefined');
Browser.isIE=window.ActiveXObject ? true : false;
Browser.isFirefox=(navigator.userAgent.toLowerCase().indexOf("firefox")!=-1);
Browser.isOpera=(navigator.userAgent.toLowerCase().indexOf("opera")!=-1);
try {
  document.execCommand('BackgroundImageCache', false, true);
} catch(e) {}
try {
if(top.location != self.location&&top.location.host == self.location.host)
document.write("<style>.showTop,.arkTop{display:none;}</style>");
} catch(e) {}

var arkT=null;

function $(){
return document.getElementById($.arguments[0])
}


function QueryString( paramName ){
    var oRegex = new RegExp('[\?&]' + paramName + '=([^&]+)','i') ;
    var oMatch = oRegex.exec(window.location.search) ;
    if (oMatch && oMatch.length>1) return oMatch[1];
    else return null;
}




function getContent(k,n){
for(var i=1;i<=2;i++){
	var td=document.getElementById("td"+k+"_"+i);
	var ta=document.getElementById("ta"+k+"_"+i);
	if(i==n){
		td.className="one";
		ta.style.display="block";
	}else{
		td.className="two";
		ta.style.display="none";
	}
}
}



function FieldSearchForm_onsubmit(){
	var SQLTitle="";
	if(document.FieldSearchForm.Content.value!=""){
		var oldStr=document.FieldSearchForm.Content.value;
		 var searchStr=searchWordPro(oldStr);
		 		 SQLTitle="("+"正文=("+ searchStr + ") or "+"标题=("+searchStr + ") or "+"作者=("+searchStr + "))";
                        SQLTitle=searchStr;
			document.FieldSearchForm.searchword.value=SQLTitle;
			return true;
	}else
	{
	alert("检索表达式不允许为空！");
	return false;
	}
}
function searchWordPro(vsearchWord){
	var tempStr="";
	var isSpace=false;
	vsearchWord=alltrim(vsearchWord);
	var word_array =vsearchWord.split(" ");
	if(word_array.length<2) return vsearchWord;
	for (loop=0; loop < word_array.length;loop++)
	{
		if((alltrim(word_array[loop]).toLowerCase()=="or") ||(alltrim(word_array[loop]).toLowerCase()=="and")){
			return vsearchWord;
		}else{
			if(loop==0)
			tempStr=word_array[loop];
			else{
				if(alltrim(word_array[loop])!="")
					tempStr=tempStr+" and "+word_array[loop];
				}
		}
	}
	return tempStr;
}
function alltrim(a_strVarContent) 
{ 
var pos1, pos2, newstring; 
pos1 = 0; 
pos2 = 0; 
newstring = "" 
if ( a_strVarContent.length > 0 ) 
{ 
   for( i=0; i<a_strVarContent.length; i++) 
   { 
	if ( a_strVarContent.charAt(i) == " " ) 
		pos1 = pos1 + 1; 
	else 
	break; 
   } 
   for( i=a_strVarContent.length-1; i>=0 ; i--) 
   { 
	if ( a_strVarContent.charAt(i) == " " ) 
		pos2 = pos2 + 1; 
	else 
	break; 
   } 
   newstring = a_strVarContent.substring(pos1, a_strVarContent.length-pos2) 
} 
return newstring; 
}















var picdata;
var picNum;
var timeOutPlus=10000;
var CurrentIndex=0;

var gaJsHost;
var pageTracker;
var intervalLoad;
var findErr=0;

function BeginLoadArk(){
	
 if($("PicdataJson")){
if(typeof(picdata_json)=="undefined"){
/*
  setTimeout("BeginLoadArk()",timeOutPlus);
  window.status="图片数据加载超时，"+timeOutPlus/1000+"秒后重新加载。";
  timeOutPlus*=2;
  $("PicdataJson").src=$("PicdataJson").src;
*/
picdata_json={"pic":[{"imgText":"红树林湿地","Bimg":"images/bar420.jpg","Simg":"images/bar420.jpg"}]};
  }
else{
//  return;
 }
 picdata=picdata_json["pic"];
 picNum=Math.min(picdata.length,5);
 CurrentIndex=parseInt(Math.random()*picNum);
preImgObj(CurrentIndex);
tmpIndex=CurrentIndex;
arkPreImg[CurrentIndex]=new Image;
arkPreImg[CurrentIndex].onload=function(){artAltImg();this.onload=null;}
arkPreImg[CurrentIndex].src=picdata[CurrentIndex]["Bimg"];
//artAltImg();

 }



gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));

intervalLoad=setInterval(function(){
try{_gat}catch(e){findErr=1;}
if(findErr){
findErr=0;
//alert('参数错误！');
}
else{
pageTracker = _gat._getTracker("UA-5301138-1");
pageTracker._trackPageview();
clearTimeout(intervalLoad);
}
},1000);

}

function artAltImg(){
var sflin='<ul>';
for(var i=1;i<=picNum;i++){
 sflin+='<li id="sfli'+i+'"><span><a href="javascript:void(setFocus1('+i+'));"><img src="'+picdata[i-1]["Simg"]+'" width="36" /></a></span></li>';
}
sflin+='</ul>';
$("setfoc").innerHTML=sflin;
$("a1").onmouseover=stopchange;
$("a2").onmouseover=stopchange;
$("a1").onmouseout=loopchange;
$("a2").onmouseout=loopchange;
SetDiv();
}
/*轮显大图片定义------------------------------------------------------*/
var TimerBp=null;
var isFirstLoop=true;
function SetDiv(){
	try{
		$('b1').filters[0].apply();
		$('b1').filters[0].Transition = 23;
		$('b1').filters[0].play();
	}catch(e){}
filla();
(CurrentIndex+1)>=picNum?CurrentIndex=0:CurrentIndex++;
}

if(document.images)
var arkPreImg=new Array();
var zoomImg;

function preImgObj(n){
 var loThisOBJ = document.createElement("img");   
 with(loThisOBJ){
  id="tmpI"+n;
  src = picdata[n]["Bimg"];
  style.display="none";
 }
 $('b1').appendChild(loThisOBJ);
}

var tmpIndex=0;
function filla(){
var tcI=(CurrentIndex<picNum-1)?CurrentIndex+1:0;
if(!$('tmpI'+CurrentIndex))preImgObj(CurrentIndex);
if(!$('tmpI'+tcI)){
arkPreImg[tcI]=new Image;
arkPreImg[tcI].src=picdata[tcI]["Bimg"];
preImgObj(tcI);
}
//	$('a1').href = picdata[CurrentIndex]["Bimg"];
	$('a1').innerHTML = picdata[CurrentIndex]["imgText"];
//	$('b1').style.backgroundImage = 'url('+picdata[CurrentIndex]["Bimg"]+')';
	$('tmpI'+tmpIndex).style.display = 'none';
	$('tmpI'+CurrentIndex).style.display = 'block';
    tmpIndex=CurrentIndex;
	var k = CurrentIndex+1;
	for(var i=1; i<=picNum; i++){
		$('sfli'+i).className=i==k?"focus":"";
	}
loopchange();
}
function setFocus1(set){
	stopchange();
	CurrentIndex = set-1;
	SetDiv();
}
function stopchange(){
  clearTimeout(TimerBp);
}
function loopchange(){
clearTimeout(TimerBp);
TimerBp=setTimeout("SetDiv();",3000);
}