/*
	[Discuz!] (C)2001-2009 Comsenz Inc.
	This is NOT a freeware, use is subject to license terms

	$Id: common.js 17535 2009-01-20 05:12:20Z monkey $
*/

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);
var is_mac = userAgent.indexOf('mac') != -1;
var ajaxdebug = 0;
var codecount = '-1';
var codehtml = new Array();

//FixPrototypeForGecko
if(is_moz && window.HTMLElement) {
	HTMLElement.prototype.__defineSetter__('outerHTML', function(sHTML) {
        	var r = this.ownerDocument.createRange();
		r.setStartBefore(this);
		var df = r.createContextualFragment(sHTML);
		this.parentNode.replaceChild(df,this);
		return sHTML;
	});

	HTMLElement.prototype.__defineGetter__('outerHTML', function() {
		var attr;
		var attrs = this.attributes;
		var str = '<' + this.tagName.toLowerCase();
		for(var i = 0;i < attrs.length;i++){
			attr = attrs[i];
			if(attr.specified)
			str += ' ' + attr.name + '="' + attr.value + '"';
		}
		if(!this.canHaveChildren) {
			return str + '>';
		}
		return str + '>' + this.innerHTML + '</' + this.tagName.toLowerCase() + '>';
        });

	HTMLElement.prototype.__defineGetter__('canHaveChildren', function() {
		switch(this.tagName.toLowerCase()) {
			case 'area':case 'base':case 'basefont':case 'col':case 'frame':case 'hr':case 'img':case 'br':case 'input':case 'isindex':case 'link':case 'meta':case 'param':
			return false;
        	}
		return true;
	});
	HTMLElement.prototype.click = function(){
		var evt = this.ownerDocument.createEvent('MouseEvents');
		evt.initMouseEvent('click', true, true, this.ownerDocument.defaultView, 1, 0, 0, 0, 0, false, false, false, false, 0, null);
		this.dispatchEvent(evt);
	}
}

Array.prototype.push = function(value) {
	this[this.length] = value;
	return this.length;
}

function $(id) {
	return document.getElementById(id);
}

function checkall(form, prefix, checkall) {
	var checkall = checkall ? checkall : 'chkall';
	count = 0;
	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;
			if(e.checked) {
				count++;
			}
		}
	}
	return count;
}

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)));
}

imggroup = new Array();
function thumbImg(obj, method) {
	if(!obj) {
		return;
	}
	obj.onload = null;
	file = obj.src;
	zw = obj.offsetWidth;
	zh = obj.offsetHeight;
	if(zw < 2) {
		if(!obj.id) {
			obj.id = 'img_' + Math.random();
		}
		setTimeout("thumbImg($('" + obj.id + "'), " + method + ")", 100);
		return;
	}
	zr = zw / zh;
	method = !method ? 0 : 1;
	if(method) {
		fixw = obj.getAttribute('_width');
		fixh = obj.getAttribute('_height');
		if(zw > fixw) {
			zw = fixw;
			zh = zw / zr;
		}
		if(zh > fixh) {
			zh = fixh;
			zw = zh * zr;
		}
	} else {
		var widthary = imagemaxwidth.split('%');
		if(widthary.length > 1) {
			fixw = $('wrap').clientWidth - 200;
			if(widthary[0]) {				
				fixw = fixw * widthary[0] / 100;				
			} else if(widthary[1]) {
				fixw = fixw < widthary[1] ? fixw : widthary[1];					
			}
		} else {
			fixw = widthary[0];
		}
		if(zw > fixw) {
			zw = fixw;
			zh = zw / zr;
			obj.style.cursor = 'pointer';
			if(!obj.onclick) {
				obj.onclick = function() {
					zoom(obj, obj.src);
				}
			}
		}
	}
	obj.width = zw;
	obj.height = zh;
}

function imgzoom() {}
function attachimg() {}

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;
}

var clipboardswfdata;
function setcopy(text, alertmsg){
	if(is_ie) {
		clipboardData.setData('Text', text);
		if(alertmsg) {
			alert(alertmsg);
		}
	} else {
		floatwin('open_clipboard', -1, 300, 110);
		$('floatwin_clipboard_title').innerHTML = '剪贴板';
		str = '<div style="text-decoration:underline;">点此复制到剪贴板</div>' +
			AC_FL_RunContent('id', 'clipboardswf', 'name', 'clipboardswf', 'devicefont', 'false', 'width', '100', 'height', '20', 'src', 'images/common/clipboard.swf', 'menu', 'false',  'allowScriptAccess', 'sameDomain', 'swLiveConnect', 'true', 'wmode', 'transparent', 'style' , 'margin-top:-20px');
		$('floatwin_clipboard_content').innerHTML = str;
		clipboardswfdata = text;
	}
}

function dconfirm(msg, script, width, height) {
	floatwin('open_confirm', -1, !width ? 300 : width, !height ? 110 : height);
	$('floatwin_confirm_title').innerHTML = '提示信息';
	$('floatwin_confirm_content').innerHTML = msg + '<br /><button onclick="' + script + ';floatwin(\'close_confirm\')">&nbsp;是&nbsp;</button>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<button onclick="floatwin(\'close_confirm\')">&nbsp;否&nbsp;</button>';
}

function dnotice(msg, script, width, height) {
	script = !script ? '' : script;
	floatwin('open_confirm', -1, !width ? 400 : width, !height ? 110 : height);
	$('floatwin_confirm_title').innerHTML = '提示信息';
	$('floatwin_confirm_content').innerHTML = msg + (script ? '<br /><button onclick="' + script + ';floatwin(\'close_confirm\')">确定</button>' : '');
}

function setcopy_gettext() {
	window.document.clipboardswf.SetVariable('str', clipboardswfdata)
}

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) : 1;
	}
	return len;
}

function mb_cutstr(str, maxlen, dot) {
	var len = 0;
	var ret = '';
	var dot = !dot ? '...' : '';
	maxlen = maxlen - dot.length;
	for(var i = 0; i < str.length; i++) {
		len += str.charCodeAt(i) < 0 || str.charCodeAt(i) > 255 ? (charset == 'utf-8' ? 3 : 2) : 1;
		if(len > maxlen) {
			ret += dot;
			break;
		}
		ret += str.substr(i, 1);
	}
	return ret;
}

function setcookie(cookieName, cookieValue, seconds, path, domain, secure) {
	var expires = new Date();
	expires.setTime(expires.getTime() + seconds * 1000);
	domain = !domain ? cookiedomain : domain;
	path = !path ? cookiepath : path;
	document.cookie = escape(cookieName) + '=' + escape(cookieValue)
		+ (expires ? '; expires=' + expires.toGMTString() : '')
		+ (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, complex, lang) {
	var obj = $(objname);
	if(obj) {
		obj.style.display = obj.style.display == '' ? 'none' : '';
		var collapsed = getcookie('discuz_collapse');
		collapsed = updatestring(collapsed, objname, !obj.style.display);
		setcookie('discuz_collapse', collapsed, (collapsed ? 2592000 : -2592000));
	}
	if(!noimg) {
		var img = $(objname + '_img');
		if(img.tagName != 'IMG') {
			if(img.className.indexOf('_yes') == -1) {
				img.className = img.className.replace(/_no/, '_yes');
				if(lang) {
					img.innerHTML = lang[0];
				}
			} else {
				img.className = img.className.replace(/_yes/, '_no');
				if(lang) {
					img.innerHTML = lang[1];
				}
			}
		} else {
			img.src = img.src.indexOf('_yes.gif') == -1 ? img.src.replace(/_no\.gif/, '_yes\.gif') : img.src.replace(/_yes\.gif/, '_no\.gif');
		}
		img.blur();
	}
	if(complex) {
		var objc = $(objname + '_c');
		objc.className = objc.className == 'c_header' ? 'c_header closenode' : 'c_header';
	}

}

function sidebar_collapse(lang) {
	if(lang[0]) {
		toggle_collapse('sidebar', null, null, lang);
		$('wrap').className = $('wrap').className == 'wrap with_side s_clear' ? 'wrap s_clear' : 'wrap with_side s_clear';
	} else {
		var collapsed = getcookie('discuz_collapse');
		collapsed = updatestring(collapsed, 'sidebar', 1);
		setcookie('discuz_collapse', collapsed, (collapsed ? 2592000 : -2592000));
		location.reload();
	}
}

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

function _attachEvent(obj, evt, func, eventobj) {
	eventobj = !eventobj ? obj : eventobj;
	if(obj.addEventListener) {
		obj.addEventListener(evt, func, false);
	} else if(eventobj.attachEvent) {
		obj.attachEvent("on" + evt, func);
	}
}

var cssloaded= new Array();
function loadcss(cssname) {
	if(!cssloaded[cssname]) {
		css = document.createElement('link');
		css.type = 'text/css';
		css.rel = 'stylesheet';
		css.href = 'forumdata/cache/style_' + STYLEID + '_' + cssname + '.css?' + VERHASH;
		var headNode = document.getElementsByTagName("head")[0];
		headNode.appendChild(css);
		cssloaded[cssname] = 1;
	}
}

var jsmenu = new Array();
var ctrlobjclassName;
jsmenu['active'] = new Array();
jsmenu['timer'] = new Array();
jsmenu['iframe'] = new Array();

function initCtrl(ctrlobj, click, duration, timeout, layer) {
	if(ctrlobj && !ctrlobj.initialized) {
		ctrlobj.initialized = true;
		ctrlobj.unselectable = true;

		ctrlobj.outfunc = typeof ctrlobj.onmouseout == 'function' ? ctrlobj.onmouseout : null;
		ctrlobj.onmouseout = function() {
			if(this.outfunc) this.outfunc();
			if(duration < 3 && !jsmenu['timer'][ctrlobj.id]) jsmenu['timer'][ctrlobj.id] = setTimeout('hideMenu(' + layer + ')', timeout);
		}

		ctrlobj.overfunc = typeof ctrlobj.onmouseover == 'function' ? ctrlobj.onmouseover : null;
		ctrlobj.onmouseover = function(e) {
			doane(e);
			if(this.overfunc) this.overfunc();
			if(click) {
				clearTimeout(jsmenu['timer'][this.id]);
				jsmenu['timer'][this.id] = null;
			} else {
				for(var id in jsmenu['timer']) {
					if(jsmenu['timer'][id]) {
						clearTimeout(jsmenu['timer'][id]);
						jsmenu['timer'][id] = null;
					}
				}
			}
		}
	}
}

function initMenu(ctrlid, menuobj, duration, timeout, layer, drag) {
	if(menuobj && !menuobj.initialized) {
		menuobj.initialized = true;
		menuobj.ctrlkey = ctrlid;
		menuobj.onclick = ebygum;
		menuobj.style.position = 'absolute';
		if(duration < 3) {
			if(duration > 1) {
				menuobj.onmouseover = function() {
					clearTimeout(jsmenu['timer'][ctrlid]);
					jsmenu['timer'][ctrlid] = null;
				}
			}
			if(duration != 1) {
				menuobj.onmouseout = function() {
					jsmenu['timer'][ctrlid] = setTimeout('hideMenu(' + layer + ')', timeout);
				}
			}
		}
		menuobj.style.zIndex = 999 + layer;
		if(drag) {
			menuobj.onmousedown = function(event) {try{menudrag(menuobj, event, 1);}catch(e){}};
			menuobj.onmousemove = function(event) {try{menudrag(menuobj, event, 2);}catch(e){}};
			menuobj.onmouseup = function(event) {try{menudrag(menuobj, event, 3);}catch(e){}};
		}
	}
}

var menudragstart = new Array();
function menudrag(menuobj, e, op) {
	if(op == 1) {
		if(in_array(is_ie ? event.srcElement.tagName : e.target.tagName, ['TEXTAREA', 'INPUT', 'BUTTON', 'SELECT'])) {
			return;
		}
		menudragstart = is_ie ? [event.clientX, event.clientY] : [e.clientX, e.clientY];
		menudragstart[2] = parseInt(menuobj.style.left);
		menudragstart[3] = parseInt(menuobj.style.top);
		doane(e);
	} else if(op == 2 && menudragstart[0]) {
		var menudragnow = is_ie ? [event.clientX, event.clientY] : [e.clientX, e.clientY];
		menuobj.style.left = (menudragstart[2] + menudragnow[0] - menudragstart[0]) + 'px';
		menuobj.style.top = (menudragstart[3] + menudragnow[1] - menudragstart[1]) + 'px';
		doane(e);
	} else if(op == 3) {
		menudragstart = [];
		doane(e);
	}
}

function showMenu(ctrlid, click, offset, duration, timeout, layer, showid, maxh, drag) {
	var ctrlobj = $(ctrlid);
	if(!ctrlobj) return;
	if(isUndefined(click)) click = false;
	if(isUndefined(offset)) offset = 0;
	if(isUndefined(duration)) duration = 2;
	if(isUndefined(timeout)) timeout = 250;
	if(isUndefined(layer)) layer = 0;
	if(isUndefined(showid)) showid = ctrlid;
	var showobj = $(showid);
	var menuobj = $(showid + '_menu');
	if(!showobj|| !menuobj) return;
	if(isUndefined(maxh)) maxh = 400;
	if(isUndefined(drag)) drag = false;

	if(click && jsmenu['active'][layer] == menuobj) {
		hideMenu(layer);
		return;
	} else {
		hideMenu(layer);
	}

	var len = jsmenu['timer'].length;
	if(len > 0) {
		for(var i=0; i<len; i++) {
			if(jsmenu['timer'][i]) clearTimeout(jsmenu['timer'][i]);
		}
	}

	initCtrl(ctrlobj, click, duration, timeout, layer);
	ctrlobjclassName = ctrlobj.className;
	ctrlobj.className += ' hover';
	initMenu(ctrlid, menuobj, duration, timeout, layer, drag);

	menuobj.style.display = '';
	if(!is_opera) {
		menuobj.style.clip = 'rect(auto, auto, auto, auto)';
	}

	setMenuPosition(showid, offset);

	if(maxh && menuobj.scrollHeight > maxh) {
		menuobj.style.height = maxh + 'px';
		if(is_opera) {
			menuobj.style.overflow = 'auto';
		} else {
			menuobj.style.overflowY = 'auto';
		}
	}

	if(!duration) {
		setTimeout('hideMenu(' + layer + ')', timeout);
	}

	jsmenu['active'][layer] = menuobj;
}

function setMenuPosition(showid, offset) {
	var showobj = $(showid);
	var menuobj = $(showid + '_menu');
	if(isUndefined(offset)) offset = 0;
	if(showobj) {
		showobj.pos = fetchOffset(showobj);
		showobj.X = showobj.pos['left'];
		showobj.Y = showobj.pos['top'];
		if($(InFloat) != null) {
			var InFloate = InFloat.split('_');
			if(!floatwinhandle[InFloate[1] + '_1']) {
				floatwinnojspos = fetchOffset($('floatwinnojs'));
				floatwinhandle[InFloate[1] + '_1'] = floatwinnojspos['left'];
				floatwinhandle[InFloate[1] + '_2'] = floatwinnojspos['top'];
			}
			showobj.X = showobj.X - $(InFloat).scrollLeft - parseInt(floatwinhandle[InFloate[1] + '_1']);
			showobj.Y = showobj.Y - $(InFloat).scrollTop - parseInt(floatwinhandle[InFloate[1] + '_2']);
			InFloat = '';
		}
		showobj.w = showobj.offsetWidth;
		showobj.h = showobj.offsetHeight;
		menuobj.w = menuobj.offsetWidth;
		menuobj.h = menuobj.offsetHeight;
		if(offset < 3) {
			menuobj.style.left = (showobj.X + menuobj.w > document.body.clientWidth) && (showobj.X + showobj.w - menuobj.w >= 0) ? showobj.X + showobj.w - menuobj.w + 'px' : showobj.X + 'px';
			menuobj.style.top = offset == 1 ? showobj.Y + 'px' : (offset == 2 || ((showobj.Y + showobj.h + menuobj.h > document.documentElement.scrollTop + document.documentElement.clientHeight) && (showobj.Y - menuobj.h >= 0)) ? (showobj.Y - menuobj.h) + 'px' : showobj.Y + showobj.h + 'px');
		} else if(offset == 3) {
			menuobj.s