/******************************************************************************
 lbbs editor common code by learn365
*******************************************************************************/

var sPop = null;
var postSubmited = true;

var userAgent = navigator.userAgent.toLowerCase();
var is_opera = (userAgent.indexOf('opera') != -1);
var is_saf = ((userAgent.indexOf('applewebkit') != -1) || (navigator.vendor == 'Apple Computer, Inc.'));
var is_webtv = (userAgent.indexOf('webtv') != -1);
var is_ie = ((userAgent.indexOf('msie') != -1) && (!is_opera) && (!is_saf) && (!is_webtv));
var is_ie4 = ((is_ie) && (userAgent.indexOf('msie 4.') != -1));
var is_moz = ((navigator.product == 'Gecko') && (!is_saf));
var is_kon = (userAgent.indexOf('konqueror') != -1);
var is_ns = ((userAgent.indexOf('compatible') == -1) && (userAgent.indexOf('mozilla') != -1) && (!is_opera) && (!is_webtv) && (!is_saf));
var is_ns4 = ((is_ns) && (parseInt(navigator.appVersion) == 4));
var is_mac = (userAgent.indexOf('mac') != -1);


//编辑器设置
var postminchars = parseInt('0');
var postmaxchars = parseInt('100000');
var typerequired = parseInt(''); 
var disablepostctrl = parseInt('1');
var bbinsert = parseInt('0'); //默认编辑器，1则为可视
var editorid = 'posteditor';
var wysiwyg = (is_ie || is_moz || (is_opera && opera.version() >= 9)) && parseInt('1') && bbinsert == 1 ? 1 : 0;
var allowswitcheditor = parseInt('1');
var allowhtml = parseInt('0'); 
var forumallowhtml = parseInt('0');
var allowsmilies = parseInt('1');
var allowbbcode = parseInt('1');
var allowimgcode = parseInt('1');

var BORDERCOLOR = "#D0D0D0";
var ALTBG2 = "#FFFFFF";


function checklength() {
	var message = bbinsert && wysiwyg ? html2bbcode(getEditorContents()) : $("message").value;
	var showmessage = postmaxchars != 0 ? '系统限制: ' + postminchars + ' 到 ' + postmaxchars + ' 字节' : '';
	alert('\n当前长度: ' + message.length + ' 字节\n\n' + showmessage);
}

function storeCaret(textEl){
	if(textEl.createTextRange){
		textEl.caretPos = document.selection.createRange().duplicate();
	}
}


function arraypop(a) {
	if(typeof a != 'object' || !a.length) {
		return null;
	} else {
		var response = a[a.length - 1];
		a.length--;
		return response;
	}
}

function arraypush(a, value) {
	a[a.length] = value;
	return a.length;
}


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

function imgzoom(o) {
	if(event.ctrlKey) {
		var zoom = parseInt(o.style.zoom, 10) || 100;
		zoom -= event.wheelDelta / 12;
		if(zoom > 0) {
			o.style.zoom = zoom + '%';
		}
		return false;
	} else {
		return true;
	}
}


function AddText(txt) {
	obj = $('message');
	selection = document.selection;
	checkFocus();
	if(typeof(obj.selectionStart) != 'undefined') {
		var opn = obj.selectionStart + 0;
		obj.value = obj.value.substr(0, obj.selectionStart) + txt + obj.value.substr(obj.selectionEnd);
	} else if(selection && selection.createRange) {
		var sel = selection.createRange();
		sel.text = txt;
		sel.moveStart('character', -mb_strlen(txt));
	} else {
		obj.value += txt;
	}
}

function insertAtCaret (textEl,	text){
	if(textEl.createTextRange && textEl.caretPos){
		var caretPos = textEl.caretPos;
		caretPos.text += caretPos.text.charAt(caretPos.text.length - 2)	== ' ' ? text +	' '	: text;
	} else if(textEl) {
		textEl.value +=	text;
	} else {
		textEl.value = text;
	}
}

function checkFocus() {
	var obj = typeof wysiwyg == 'undefined' || !wysiwyg ? $('message') : editwin;
	if(!obj.hasfocus) {
		obj.focus();
	}
}




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

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


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


function resizeEditor(change) {
	var editorbox = wysiwyg ? editbox : textobj;
	var newheight = parseInt(editorbox.style.height, 10) + change;
	if(newheight >= 100) {
		editorbox.style.height = newheight + 'px';
	}
}


document.write("<style type='text/css'id='defaultPopStyle'>");
document.write(".cPopText { font-family: Tahoma, Verdana; background-color: #FFFFCC; border: 1px #000000 solid; font-size: 12px; padding-right: 4px; padding-left: 4px; line-height: 18px; padding-top: 2px; padding-bottom: 2px; visibility: hidden; filter: Alpha(Opacity=80)}");
document.write("</style>");
document.write("<div id='popLayer' style='position:absolute;z-index:1000' class='cPopText'></div>");