// JavaScript Document
function reload_authimg(){
	ajax_get("comment_auth_img.php","authimg");
}

function reply(id){
	document.form1.vid.value=id;
	document.form1.name.value="admin";
	document.form1.comment.focus();
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_validateForm() { //v4.0
  var i,p,q,nm,test,num,min,max,errors='',args=MM_validateForm.arguments;
  for (i=0; i<(args.length-2); i+=3) { test=args[i+2]; val=MM_findObj(args[i]);
    if (val) { nm=val.id; if ((val=val.value)!="") {
      if (test.indexOf('isEmail')!=-1) { p=val.indexOf('@');
        if (p<1 || p==(val.length-1)) errors+='- '+nm+' 必须是一个EMAIL地址.\n';
      } else if (test!='R') { num = parseFloat(val);
        if (isNaN(val)) errors+='- '+nm+' 必须包含一个数字.\n';
        if (test.indexOf('inRange') != -1) { p=test.indexOf(':');
          min=test.substring(8,p); max=test.substring(p+1);
          if (num<min || max<num) errors+='- '+nm+' 必须在数字 '+min+' 和 '+max+'之间.\n';
    } } } else if (test.charAt(0) == 'R') errors += '- '+nm+' 是必填的.\n'; }
  } if (errors) alert('有以下错误发生:\n'+errors);
  document.MM_returnValue = (errors == '');
}

function del(url){
	document.getElementById('tips').style.display = "block";
	document.getElementById('tips_text').innerHTML = "你确定要删除吗？该操作将不可还原。";
	document.getElementById('del_a').href = url;	
}

function del_cancel(){
	document.getElementById('tips').style.display = "none";
}


function next( elem ) {
    do {
        elem = elem.nextSibling;
    } while ( elem && elem.nodeType != 1 );
    return elem;
}

function first( elem ) {
    elem = elem.firstChild;
    return elem && elem.nodeType != 1 ?
        next ( elem ) : elem;
}

function sub_on(id){
	var element = document.getElementById('td_submenu');
    var cur = first(element);
	while ( cur != null ) {
		cur.style.display = "none";
        cur = next(cur); //移动到下一个子节点
    }
	document.getElementById('submenu_'+id).style.display = "block";
}

function tag_switch(id){
	//先设置Tag的头部
	var element = document.getElementById('tag_head');
    var cur = first(element);
	while ( cur != null ) {
		cur.className = "tag_off";
        cur = next(cur); //移动到下一个子节点
    }
	document.getElementById('tag_li_'+id).className = "tag_on";
	
	//设置Tag的内容
	var element = document.getElementById('tag_div');
    var cur = first(element);
	while ( cur != null ) {
		cur.style.display = "none";
        cur = next(cur); //移动到下一个子节点
    }
	document.getElementById('tag_div_'+id).style.display = "block";
}

//Ajax !------------
//append by Kingmax 
function ajax_get(url,div)
{
	var ajax = new Ajax(); 
	var ajax_o = new Ajax_callback_object();
	ajax_o.div = div;
	ajax.get(url,ajax_o);
}

function ajax_post(url,form,div)
{
	var q = generate_post_query(form);
	var ajax = new Ajax(); 
	var ajax_o = new Ajax_callback_object();
	ajax_o.div = div;
	ajax.post(url,q,ajax_o);
}

function Ajax_callback_object() {
	
	this.div = '';
	this.callback = show_div;
	
	function show_div(response){
		document.getElementById(this.div).innerHTML=response;
	}
}

function generate_post_query(f){
	var q='';
	for(var i=0;i<f.elements.length;i++){
		if(i!=0);q+='&';
		q+=f.elements[i].name+'='+f.elements[i].value;
	}
	return q;
}

function create_xmlhttp() { 
	if(window.XMLHttpRequest) { 
	// Non-IE browsers 
		req = new XMLHttpRequest(); 
	} else if(window.ActiveXObject) { 
	// IE 
		req = new ActiveXObject("Microsoft.XMLHTTP"); 
	} 
	return req; 
} 
	
// ajax class 
function Ajax() { 
	this.xmlhttp = create_xmlhttp(); 
	
	this.get = ajax_get; 
	this.post = ajax_post; 
	
	this.response = ''; 
	this.callback_object = ''; 
	
	function ajax_get(url,callback_object) { 
	
		this.callback_object = callback_object; 
		
		var this_obj = this; 

		this.xmlhttp.onreadystatechange = function() { 
			if(this_obj.xmlhttp.readyState == 4) { 
				if(this_obj.xmlhttp.status == 200) { 
				     //alert(this_obj.xmlhttp.getAllResponseHeaders());
					this_obj.callback_object.callback(this_obj.xmlhttp.responseText);
					
				} else { 
					alert('There was a problem with the request. ('+this_obj.xmlhttp.status+')'); 
				} 
			} 
		} 
		this.xmlhttp.open("GET", url, true); 
		this.xmlhttp.send(null);
		
		return true; 
	}
	
	function ajax_post(url, query, callback_object) { 
	
		this.callback_object = callback_object; 
	
		var this_obj = this; 
	
		this.xmlhttp.onreadystatechange = function() { 
			if(this_obj.xmlhttp.readyState == 4) { 
				if(this_obj.xmlhttp.status == 200) { 
					this_obj.callback_object.callback(this_obj.xmlhttp.responseText);
				} else { 
					alert('There was a problem with the request. (' + this_obj.xmlhttp.status + ')'); 
				} 
			} 
		} 
	
		this.xmlhttp.open('POST', url); 
		this.xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); 
		this.xmlhttp.send(query); 
		return true; 
	} 
} 

function attachSelect(strInitID, arrSelect, arrMatrix, arrDefValue) {
	function doChange(iIndex) {
		var iCount = 0;
		var sParentID = strInitID;
		if (iIndex > 0) sParentID = arrSelect[iIndex - 1].options[arrSelect[iIndex - 1].selectedIndex].ID;
		with (arrSelect[iIndex]) {
			length = 0;
			for (var i = 0; i < arrMatrix.length; i++) {
				if (String(arrMatrix[i][1]) == String(sParentID)) {
					var oNewOption = new Option(arrMatrix[i][2], arrMatrix[i][3], false, arrMatrix[i][3] == arrDefValue[iIndex] || iCount == 0);
					oNewOption.ID = arrMatrix[i][0];
					options[iCount++] = oNewOption;
				};
			};
			if (iCount == 0) {
				var oNull = new Option("--", '', false, true);
				oNull.ID = "_0x" + (new Date()).getTime();
				options[0] = oNull;
			};
			if (++iIndex < arrSelect.length) doChange(iIndex);
		};
	};
	if (!arrDefValue) arrDefValue = [];
	for (var i = 0; i < arrSelect.length - 1; i++) {
		eval("arrSelect[" + i + "].onchange = function(){ doChange(" + (i + 1) + "); };");
	}
	doChange(0);
	arrDefValue = [];
};

function show_login(){
	document.getElementById('login').style.display='block';
}