/*------------------------------------------

感谢xujiwei的class 让我少写了很多代码

Name: AJAXRequest
Author: xujiwei  
Website: http://www.xujiwei.cn
E-mail: vipxjw@163.com
Copyright (c) 2007, All Rights Reserved

AJAXRequest Deveoper Manual:
  http://www.xujiwei.cn/works/ajaxrequest/
------------------------------------------*/
function AJAXRequest() {
	var xmlPool = new Array;
	var xmlVersion = ["MSXML2.XMLHTTP","Microsoft.XMLHTTP"];
	var AJAX = this;
	if(arguments[0]) this.url=arguments[0]; else this.url="";
	if(arguments[1]) this.oncomplete=arguments[1]; else this.oncomplete=function(obj){return};
	if(arguments[2]) this.content=arguments[2]; else this.content="";
	if(arguments[3]) this.method=arguments[3]; else this.method="POST";
	if(arguments[4]) this.async=arguments[4]; else this.async=true;
	if(!getObj()) return false;
	function getObj() {
		var i;
		for(i=0;i<xmlPool.length;i++) if(xmlPool[i].readystate==4) return xmlPool[i];
		var tmpObj;
		try { tmpObj=new XMLHttpRequest; }
		catch(e) {
			for(i=0;i<xmlVersion.length;i++) {
				try { tmpObj=new ActiveXObject(xmlVersion[i]); }
				catch(e2) { continue; }
				break;
			}
		}
		if(!tmpObj) return false;
		else {
			xmlPool[xmlPool.length]=tmpObj;
			return xmlPool[xmlPool.length-1];
		}
	}
	this.send=function() {
		var purl,pcbf,pc,pm,pa,xmlObj;
		xmlObj=getObj();
		if(!xmlObj) return false;
		if(arguments[0]) purl=arguments[0]; else purl=this.url;
		if(arguments[1]) pc=arguments[1]; else pc=this.content;
		if(arguments[2]) pcbf=arguments[2]; else pcbf=this.oncomplete;
		if(arguments[3]) pm=arguments[3]; else pm=this.method;
		if(arguments[4]) pa=arguments[4]; else pa=this.async;
		if(!pm||!purl||!pa) return false;
		xmlObj.open(pm,purl,pa);
		if(pm=="POST") xmlObj.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
		xmlObj.onreadystatechange=function() {
			if(xmlObj.readyState==4)
				if(xmlObj.status==200) pcbf(xmlObj); else pcbf(null);
		}
		if(pm=="POST") xmlObj.send(pc); else xmlObj.send("");
	}
	this.get=function() {
		var purl,pcbf;
		if(arguments[0]) purl=arguments[0]; else purl=this.url;
		if(arguments[1]) pcbf=arguments[1]; else pcbf=this.oncomplete;
		if(!purl&&!pcbf) return false;
		this.send(purl,"",pcbf,"GET",true);
	}
	this.update=function() {
		var purl,puo,pinv,pcnt,rinv,ucb;
		if(arguments[0]) purl=arguments[0]; else purl=this.url;
		if(arguments[1]) puo=arguments[1];
		if(arguments[2]&&!isNaN(parseInt(arguments[2]))) pinv=parseInt(arguments[2]);
		if(arguments[3]&&!isNaN(parseInt(arguments[3]))) pcnt=parseInt(arguments[3]);
		if(puo)
			ucb=function(obj) {
				if(puo.nodeName=="DIV") puo.innerHTML=obj.responseText;
				else if(puo.nodeName=="INPUT"||puo.nodeName=="TEXTAREA") puo.value=obj.responseText;
				else return;
			}
		else
			ucb=function(obj) { return; }
		if(pinv&&pinv>0)
			if(pcnt&&pcnt>0) {
				var cf=function(cc) {
					AJAX.send(purl,"",ucb,"GET",true);
					if(cc<1) return; else cc--;
					setTimeout(cf,pinv,cc);
				}
				cf(--pcnt);
			}
			else
				return(setInterval(this.send,pinv,purl,"",ucb,"GET",true));
		else
			this.send(purl,"",ucb,"GET",true);
	}
	this.post=function() {
		var purl,pcbf,pc;
		if(arguments[0]) purl=arguments[0]; else purl=this.url;
		if(arguments[1]) pcbf=arguments[1]; else pcbf=this.oncomplete;
		if(arguments[2]) pc=arguments[2]; else pc="";
		if(!purl&&!pcbf) return false;
		this.send(purl,pc,pcbf,"POST",true);
	}
	this.postf=function() {
		var fo,pcbf,purl,pc,pm;
		if(arguments[0]) fo=arguments[0]; else return false;
		if(arguments[1]) pcbf=arguments[1]; else pcbf=this.oncomplete;
		if(arguments[2]) purl=arguments[2];
		else if(fo.action) purl=fo.action;
		else purl=this.url;
		if(arguments[3]) pm=arguments[3];
		else if(fo.method) pm=fo.method.toLowerCase();
		else pm="post";
		if(!pcbf&&!purl) return false;
		pc=this.formToStr(fo);
		if(!pc) return false;
		if(pm) {
			if(pm=="post") this.send(purl,pc,pcbf,"POST",true);
			else
				if(purl.indexOf("?")>0) this.send(purl+"&"+pc,"",pcbf,"GET",true);
				else this.send(purl+"?"+pc,"",pcbf,"GET",true);
		}
		else this.send(purl,pc,pcbf,"POST",true);
	}
	// formToStr
	// from SurfChen <surfchen@gmail.com>
	// @url     http://www.surfchen.org/
	// @license http://www.gnu.org/licenses/gpl.html GPL
	// modified by xujiwei
	// @url     http://www.xujiwei.cn/
	this.formToStr=function(fc) {
		var i,query_string="",and="";
		for(i=0;i<fc.length;i++) {
			e=fc[i];
			if (e.name!='') {
				if (e.type=='select-one') element_value=e.options[e.selectedIndex].value;
				else if (e.type=='checkbox' || e.type=='radio') {
					if (e.checked==false) continue;
					element_value=e.value;
				}
				else element_value=e.value;
				element_value=encodeURIComponent(element_value);
				query_string+=and+e.name+'='+element_value;
				and="&";
			}
		}
		return query_string;
	}
}
/*下面是我写的辅助代码*/
function showStatus()
{
	 if ( document.getElementById("td_load") != null )
	 {
		 document.getElementById("td_load").innerHTML = "<div class=\"loadhint\"><img src=\"/wp-content/themes/cosbeta/images/loading.gif\" />loading...</div>" ;
	 }
	if ( document.getElementById("tmpDiv") != null )
	 {
		 document.getElementById("tmpDiv").style.display = ""; 
	 }

	 

}
function fadeStatus()
{
	 if ( document.getElementById("td_load") != null )
	 {
		 document.getElementById("td_load").innerHTML = "&nbsp;" ;
	 }
	  if ( document.getElementById("tmpDiv") != null )
	 {
		 document.getElementById("tmpDiv").style.display = "none"; 
	 }

}


function addPage(obj){
	var tmp = document.getElementById(obj).value *1 + 1;
	document.getElementById(obj).value= tmp ;
	return true;
}
function minPage(obj){
	if(document.getElementById(obj).value <=1 )return true;
	var tmp = document.getElementById(obj).value *1 - 1;
	document.getElementById(obj).value= tmp ;
	return true;
}
function recoverButton()
{
	var i = 0,tmp="";
	if ( document.getElementById("gopage") != null)
	{
		document.getElementById("gopage").disabled  = false;
	}
	if ( document.getElementById("page") != null)
	{
		document.getElementById("page").disabled  = false;
	}
	if ( document.getElementById("uppage") != null)
	{
		document.getElementById("uppage").disabled  = false;
	}
	if ( document.getElementById("downpage") != null)
	{
		document.getElementById("downpage").disabled  = false;
	}
	if ( document.getElementById("submit") != null)
	{
		document.getElementById("submit").disabled  = false;
	}
	//另外多增加几个button
	while( i < 10 ){

		tmp = "button" + i;

		if ( document.getElementById(tmp) != null){

			document.getElementById(tmp).disabled  = false;

		}	
		else{

			break;
		}


		i ++ ;

	}
}
function disButton()
{
	var i = 0,tmp="";

	if ( document.getElementById("page") != null)
	{
		//document.getElementById("page").disabled  = true;
	}
	if ( document.getElementById("gopage") != null)
	{
		document.getElementById("gopage").disabled  = true;
	}

	if ( document.getElementById("uppage") != null)
	{
		document.getElementById("uppage").disabled  = true;
	}
	if ( document.getElementById("downpage") != null)
	{
		document.getElementById("downpage").disabled  = true;
	}
	if ( document.getElementById("submit") != null)
	{
		document.getElementById("submit").disabled  = true;
	}
	//另外多增加几个button
	while( i < 10  ){

		tmp = "button" + i;

		if ( document.getElementById(tmp) != null){

			document.getElementById(tmp).disabled  = true;

		}
		else{

			break;
		}

		i ++ ;

	}
}
function Quote(id){
var tmp = '[quote]' + document.getElementById(id).innerHTML.replace(/(<[^<>]+>)/g,"") + '[/quote]';
document.getElementById('comment').value += tmp.replace(/^\s*|\s*$/g,"").replace(/(^　*)|(　*$)/g,""); 
  
}
function postComments(){
showStatus();
disButton();
var ajax=new AJAXRequest;
	ajax.postf(
		document.getElementById("commentform"),
		function(obj) { 
		recoverButton();
		   if(obj.responseText.length > 4){
		     alert('评论失败：留言重复或者用户,email为空');
			 fadeStatus();
		     return false;
		   }
		loader(); 
		document.getElementById('comment').value = "";
		}
	);

}