var lang = new Array();
var userAgent = navigator.userAgent.toLowerCase();
var is_opera = userAgent.indexOf('opera') != -1 && opera.version();
var is_moz = (navigator.product == 'Gecko') && userAgent.substr(userAgent.indexOf('firefox') + 8, 3);
var is_ie = (userAgent.indexOf('msie') != -1 && !is_opera) && userAgent.substr(userAgent.indexOf('msie') + 5, 3);

function $(id){
	return document.getElementById(id);
}
function N(id) {
	return document.getElementsByName(id);
}
function dis(id,isclose) {
    if (isclose)
	    $(id).style.display = "block";
	else
	    $(id).style.display = "none";
}
function checkall(form, prefix, checkall) {
	var checkall = checkall ? checkall : 'chkall';
	for(var i = 0; i < form.elements.length; i++) {
		var e = form.elements[i];
		if(e.name && e.name != checkall && (!prefix || (prefix && e.name.match(prefix)))) {
			e.checked = form.elements[checkall].checked;
		}
	}
}

function doane(event) {
	e = event ? event : window.event;
	if(is_ie) {
		e.returnValue = false;
		e.cancelBubble = true;
	} else if(e) {
		e.stopPropagation();
		e.preventDefault();
	}
}

function fetchCheckbox(cbn) {
	return $(cbn) && $(cbn).checked == true ? 1 : 0;
}

function getcookie(name) {
	var cookie_start = document.cookie.indexOf(name);
	var cookie_end = document.cookie.indexOf(";", cookie_start);
	return cookie_start == -1 ? '' : unescape(document.cookie.substring(cookie_start + name.length + 1, (cookie_end > cookie_start ? cookie_end : document.cookie.length)));
}

function thumbImg(obj) {
	var zw = obj.width;
	var zh = obj.height;
	if(is_ie && zw == 0 && zh == 0) {
		var matches
		re = /width=(["']?)(\d+)(\1)/i
		matches = re.exec(obj.outerHTML);
		zw = matches[2];
		re = /height=(["']?)(\d+)(\1)/i
		matches = re.exec(obj.outerHTML);
		zh = matches[2];
	}
	obj.resized = true;
	obj.style.width = zw + 'px';
	obj.style.height = 'auto';
	if(obj.offsetHeight > zh) {
		obj.style.height = zh + 'px';
		obj.style.width = 'auto';
	}
	if(is_ie) {
		var imgid = 'img_' + Math.random();
		obj.id = imgid;
		setTimeout('try {if ($(\''+imgid+'\').offsetHeight > '+zh+') {$(\''+imgid+'\').style.height = \''+zh+'px\';$(\''+imgid+'\').style.width = \'auto\';}} catch(e){}', 1000);
	}
}

function in_array(needle, haystack) {
	if(typeof needle == 'string' || typeof needle == 'number') {
		for(var i in haystack) {
			if(haystack[i] == needle) {
					return true;
			}
		}
	}
	return false;
}

function setcopy(text, alertmsg){
	if(is_ie) {
		clipboardData.setData('Text', text);
		alert(alertmsg);
	} else if(prompt('Press Ctrl+C Copy to Clipboard', text)) {
		alert(alertmsg);
	}
}

function isUndefined(variable) {
	return typeof variable == 'undefined' ? true : false;
}

function mb_strlen(str) {
	var len = 0;
	for(var i = 0; i < str.length; i++) {
		len += str.charCodeAt(i) < 0 || str.charCodeAt(i) > 255 ? (/*charset == 'utf-8' ? 3 : 2*/3) : 1;
	}
	return len;
}

function setcookie(cookieName, cookieValue, seconds, path, domain, secure) {
	var expires = new Date();
	expires.setTime(expires.getTime() + seconds);
	document.cookie = escape(cookieName) + '=' + escape(cookieValue)
		+ (expires ? '; expires=' + expires.toLocaleString() : '')
		+ (path ? '; path=' + path : '/')
		+ (domain ? '; domain=' + domain : '')
		+ (secure ? '; secure' : '');
}

function strlen(str) {
	return (is_ie && str.indexOf('\n') != -1) ? str.replace(/\r?\n/g, '_').length : str.length;
}

function updatestring(str1, str2, clear) {
	str2 = '_' + str2 + '_';
	return clear ? str1.replace(str2, '') : (str1.indexOf(str2) == -1 ? str1 + str2 : str1);
}

function toggle_collapse(objname, noimg) {
	var obj = $(objname);
	obj.style.display = obj.style.display == '' ? 'none' : '';
	if(!noimg) {
		var img = $(objname + '_img');
		img.src = img.src.indexOf('_yes.gif') == -1 ? img.src.replace(/_no\.gif/, '_yes\.gif') : img.src.replace(/_yes\.gif/, '_no\.gif')
	}
	var collapsed = getcookie('discuz_collapse');
	collapsed =  updatestring(collapsed, objname, !obj.style.display);
	setcookie('discuz_collapse', collapsed, (collapsed ? 86400 * 30 : -(86400 * 30 * 1000)));
}

function trim(str) {
	return (str + '').replace(/(\s+)$/g, '').replace(/^\s+/g, '');
}

function _attachEvent(obj, evt, func) {
	if(obj.addEventListener) {
		obj.addEventListener(evt, func, false);
	} else if(obj.attachEvent) {
		obj.attachEvent("on" + evt, func);
	}
}
/*Discuz!NT*/
function scrollHiddenDiv(div, scrollwidth)
{
	div.scrollLeft += scrollwidth;
}

function findtags(parentobj, tag) {
	if(!isUndefined(parentobj.getElementsByTagName)) {
		return parentobj.getElementsByTagName(tag);
	} else if(parentobj.all && parentobj.all.tags) {
		return parentobj.all.tags(tag);
	} else {
		return null;
	}
}

function getQueryString(queryname) {
    var qKeys = {};
    var re = /[?&]([^=]+)(?:=([^&]*))?/g;
    var matchInfo;
    while(matchInfo = re.exec(location.search)){
	    qKeys[matchInfo[1]] = matchInfo[2];
    }
    return typeof(qKeys[queryname])=='undefined'?'':qKeys[queryname];
}

function getUserid()
{
	// cookies are separated by semicolons
	var aCookie = document.cookie.split("; ");
	for (var i=0; i < aCookie.length; i++)
	{
		// a name alue pair (a crumb) is separated by an equal sign
		var aCrumb = aCookie[i].split("=");
		for(var j = 0; j < aCrumb.length; j++)
		{
			if ("userid" == aCrumb[j])
			{
				return aCrumb[j+1].split("&")[0];
			}
		}
	}
	// a cookie with the requested name does not exist
	return null;
}

//自定义的几个方法
function openurl(url,target)
{
    if(target!=null||target!=undefined)
    {
        window.open(url,target);
    }
    else
    window.location.href = url;
}
function confirmopenurl(url,confirmstr,target)
{
    if (confirm(confirmstr)){if(target!=null||target!=undefined)window.open(url,target);else window.location.href = url;}
}
function JumpMenu(targ,selObj,restore){ //v3.0
      eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
      if (restore) selObj.selectedIndex=0;
    }

function SelectGridViewRow(gvid,curclass,naturalclass){
    var gvtable = $(gvid);
    var evenclass="gridviewroweven ";
    if (gvtable != null)
    {
        var trs = gvtable.getElementsByTagName("tr");//控制tr,给tr项 添加事件,改变样式  
        if (trs.length>1)
        {
            for(var ii=1,max=trs.length;ii<max;ii++){
                trs[ii].index=ii;
                trs[ii].sel=false;
                if(evenclass!="")
                {
                    if(ii%2==0)
                        trs[ii].className = evenclass;
                }
                trs[ii].onmouseover=selecti;
                trs[ii].onmouseout=releasei;
                trs[ii].onclick=selectclick;
              }
         }
    }
	function selectclick()
	{
	    if(trs[this.index].sel)
	        trs[this.index].sel=false;
	    else
	        trs[this.index].sel=true;	        
	}
	function selecti()
	{		            
	    if(curclass!="")
	        trs[this.index].className = curclass;
	}
	function releasei()
	{
		if(!trs[this.index].sel)
		{
		    if(this.index%2==0)
	        {	            
	            trs[this.index].className = evenclass+naturalclass;
	        }
		    else
		        trs[this.index].className = naturalclass;
		}
	}
}
function formatStr(){
  
   var ary = [];
   if( (tp = typeof(arguments[0])) !== 'string'){
    throw "format string can not be a :" + tp;
   }
   for(var i = 1 ; i < arguments.length ; i++){
    ary.push(arguments[i]);
   }
    return arguments[0].replace(/\{(\d+)\}/g,function(m ,i){
    return ary[i];
   });
}

//自定义的几个方法end