// bbCode control by
// subBlue design
// www.subBlue.com

// Startup variables
var imageTag = false;
var theSelection = false;

// Check for Browser & Platform for PC & IE specific bits
// More details from: http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html
var clientPC = navigator.userAgent.toLowerCase(); // Get client info
var clientVer = parseInt(navigator.appVersion); // Get browser version

var is_ie = ((clientPC.indexOf("msie") != -1) && (clientPC.indexOf("opera") == -1));
var is_nav = ((clientPC.indexOf('mozilla')!=-1) && (clientPC.indexOf('spoofer')==-1)
                && (clientPC.indexOf('compatible') == -1) && (clientPC.indexOf('opera')==-1)
                && (clientPC.indexOf('webtv')==-1) && (clientPC.indexOf('hotjava')==-1));
var is_moz = 0;

var is_win = ((clientPC.indexOf("win")!=-1) || (clientPC.indexOf("16bit") != -1));
var is_mac = (clientPC.indexOf("mac")!=-1);

// Define the bbCode tags
bbcode = new Array();
bbtags = new Array('[b]','[/b]','[i]','[/i]','[u]','[/u]','[quote]','[/quote]','[code]','[/code]','[list]','[/list]','[*]','','[img]','[/img]','[url]','[/url]','[center]','[/center]','[email]','[/email]','','','','','','','[spoiler]','[/spoiler]','[url]','[/url]','[hr]','','[align=left]','[/align]','[align=center]','[/align]','[align=right]','[/align]','[align=justify]','[/align]','[sub]','[/sub]','[sup]','[/sup]','[s]','[/s]');
imageTag = false;

// Shows the help messages in the helpline window
function helpline(help) {
        //document.frm.helpbox.value = eval(help + "_help");
}


// Replacement for arrayname.length property
function getarraysize(thearray) {
        for (i = 0; i < thearray.length; i++) {
                if ((thearray[i] == "undefined") || (thearray[i] == "") || (thearray[i] == null))
                        return i;
                }
        return thearray.length;
}

// Replacement for arrayname.push(value) not implemented in IE until version 5.5
// Appends element to the array
function arraypush(thearray,value) {
        thearray[ getarraysize(thearray) ] = value;
}

// Replacement for arrayname.pop() not implemented in IE until version 5.5
// Removes and returns the last element of an array
function arraypop(thearray) {
        thearraysize = getarraysize(thearray);
        retval = thearray[thearraysize - 1];
        delete thearray[thearraysize - 1];
        return retval;
}


function checkForm() {

        formErrors = false;

        if (document.frm.text.value.length < 2) {
                formErrors = "Необходимо ввести сообщение.";
        }

        if (formErrors) {
                alert(formErrors);
                return false;
        } else {
                bbstyle(-1);
                //formObj.preview.disabled = true;
                //formObj.submit.disabled = true;
                return true;
        }
}

function emoticon(text) {
        var txtarea = document.frm.text;
        text = ' ' + text + ' ';
        if (txtarea.createTextRange && txtarea.caretPos) {
                var caretPos = txtarea.caretPos;
                caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? caretPos.text + text + ' ' : caretPos.text + text;
                txtarea.focus();
        } else {
                txtarea.value  += text;
                txtarea.focus();
        }
}

function bbfontstyle(bbopen, bbclose) {
        var txtarea = document.frm.text;

        if ((clientVer >= 4) && is_ie && is_win) {
                theSelection = document.selection.createRange().text;
                if (!theSelection) {
                        txtarea.value += bbopen + bbclose;
                        txtarea.focus();
                        return;
                }
                document.selection.createRange().text = bbopen + theSelection + bbclose;
                txtarea.focus();
                return;
        }
        else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
        {
                mozWrap(txtarea, bbopen, bbclose);
                return;
        }
        else
        {
                txtarea.value += bbopen + bbclose;
                txtarea.focus();
        }
        storeCaret(txtarea);
}


function bbstyle(bbnumber) {
        var txtarea = document.frm.text;

        txtarea.focus();
        donotinsert = false;
        theSelection = false;
        bblast = 0;

        if (bbnumber == -1) { // Close all open tags & default button names
                while (bbcode[0]) {
                        butnumber = arraypop(bbcode) - 1;
                        txtarea.value += bbtags[butnumber + 1];
                        buttext = eval('document.frm.addbbcode' + butnumber + '.value');
                        eval('document.frm.addbbcode' + butnumber + '.value ="' + buttext.substr(0,(buttext.length - 1)) + '"');
                }
                imageTag = false; // All tags are closed including image tags :D
                txtarea.focus();
                return;
        }

        if ((clientVer >= 4) && is_ie && is_win)
        {
                theSelection = document.selection.createRange().text; // Get text selection
                if (theSelection) {
                        // Add tags around selection
                        document.selection.createRange().text = bbtags[bbnumber] + theSelection + bbtags[bbnumber+1];
                        txtarea.focus();
                        theSelection = '';
                        return;
                }
        }
        else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
        {
                mozWrap(txtarea, bbtags[bbnumber], bbtags[bbnumber+1]);
                return;
        }

        // Find last occurance of an open tag the same as the one just clicked
        for (i = 0; i < bbcode.length; i++) {
                if (bbcode[i] == bbnumber+1) {
                        bblast = i;
                        donotinsert = true;
                }
        }

        if (donotinsert) {                // Close all open tags up to the one just clicked & default button names
                while (bbcode[bblast]) {
                                butnumber = arraypop(bbcode) - 1;
                                txtarea.value += bbtags[butnumber + 1];
                                buttext = eval('document.frm.addbbcode' + butnumber + '.value');
                                eval('document.frm.addbbcode' + butnumber + '.value ="' + buttext.substr(0,(buttext.length - 1)) + '"');
                                imageTag = false;
                        }
                        txtarea.focus();
                        return;
        } else { // Open tags

                if (imageTag && (bbnumber != 14)) {                // Close image tag before adding another
                        txtarea.value += bbtags[19];
                        lastValue = arraypop(bbcode) - 1;        // Remove the close image tag from the list
                        document.frm.addbbcode14.value = "Img";        // Return button back to normal state
                        imageTag = false;
                }

                // Open tag
                txtarea.value += bbtags[bbnumber];
                if ((bbnumber == 14) && (imageTag == false)) imageTag = 1; // Check to stop additional tags after an unclosed image tag
                arraypush(bbcode,bbnumber+1);
                eval('document.frm.addbbcode'+bbnumber+'.value += "*"');
                txtarea.focus();
                return;
        }
        storeCaret(txtarea);
}

// From http://www.massless.org/mozedit/
function mozWrap(txtarea, open, close)
{
        var selLength = txtarea.textLength;
        var selStart = txtarea.selectionStart;
        var selEnd = txtarea.selectionEnd;
        if (selEnd == 1 || selEnd == 2)
                selEnd = selLength;

        var s1 = (txtarea.value).substring(0,selStart);
        var s2 = (txtarea.value).substring(selStart, selEnd)
        var s3 = (txtarea.value).substring(selEnd, selLength);
        txtarea.value = s1 + open + s2 + close + s3;
        return;
}

// Insert at Claret position. Code from
// http://www.faqts.com/knowledge_base/view.phtml/aid/1052/fid/130
function storeCaret(textEl) {
        if (textEl.createTextRange) textEl.caretPos = document.selection.createRange().duplicate();
}

function toggleSpoiler(id)
{
    elem = document.getElementById(id);
    if (elem.style.display == 'none')
    {
        elem.style.display = 'block';
    }
    else
    {
        elem.style.display = 'none';
    }
}

//Далее код с Ru-board
var txt=''
function copyQ() {
txt=''
if (document.getSelection) {txt=document.getSelection()}
else if (document.selection) {txt=document.selection.createRange().text;}
txt='[quote]'+txt+'[/quote]\n'
}
function setCaret (textObj) {
if (textObj.createTextRange) {
textObj.caretPos = document.selection.createRange().duplicate();
}
}
function insertAtCaret (textObj, textFieldValue) {
if(document.all){
if (textObj.createTextRange && textObj.caretPos && !window.opera) {
var caretPos = textObj.caretPos;
caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ?textFieldValue + ' ' : textFieldValue;
}else{
textObj.value += textFieldValue;
}
}else{
if(textObj.selectionStart){
var rangeStart = textObj.selectionStart;
var rangeEnd = textObj.selectionEnd;
var tempStr1 = textObj.value.substring(0,rangeStart);
var tempStr2 = textObj.value.substring(rangeEnd, textObj.value.length);
textObj.value = tempStr1 + textFieldValue + tempStr2;
textObj.selectionStart=textObj.selectionEnd=rangeStart+textFieldValue.length;
}else{
textObj.value+=textFieldValue;
}
}
}
function pasteQ(){
if (txt!='' && document.getElementById('text'))
insertAtCaret(document.getElementById("text"),txt);
}
function pasteN(text){
if (text!='' && document.getElementById('text'))
insertAtCaret(document.getElementById("text"),"[b]" + text + "[/b]\n");
}