var str_select = '';

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

// Check for Browser & Platform for PC & IE specific bits
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]','[list=]','[/list]','[img]','[/img]','[url]','[/url]','','','','','[s]','[/s]','[left]','[/left]','[right]','[/right]','[center]','[/center]','[sub]','[/sub]','[sup]','[/sup]','[cut]','','[email]','[/email]');
imageTag = false;

// 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 emoticon(text) {
//        var txtarea = document.getElementById('f[body]');
//        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 emoticon(text) {
   var txtarea = document.getElementById('f[body]');
   text = ' ' + text + ' ';
   if (txtarea.createTextRange && txtarea.caretPos) {
      var caretPos = txtarea.caretPos;
      caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? text + ' ' : text;
      txtarea.focus();
   } else
   if (txtarea.selectionEnd && (txtarea.selectionStart | txtarea.selectionStart == 0))
   {
      mozInsert(txtarea, text, "");
   } else {
      txtarea.value  += text;
      txtarea.focus();
   }
}

function mozInsert(txtarea, openTag, closeTag)
{
        if (txtarea.selectionEnd > txtarea.value.length) { txtarea.selectionEnd = txtarea.value.length; }

        var startPos = txtarea.selectionStart;
        var endPos = txtarea.selectionEnd+openTag.length;

        txtarea.value=txtarea.value.slice(0,startPos)+openTag+txtarea.value.slice(startPos);
        txtarea.value=txtarea.value.slice(0,endPos)+closeTag+txtarea.value.slice(endPos);

        txtarea.selectionStart = startPos+openTag.length;
        txtarea.selectionEnd = endPos;
        txtarea.focus();
}

function bbfontstyle(bbopen, bbclose) {
        var txtarea = document.getElementById('f[body]');

        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.getElementById('f[body]');

        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.post.addbbcode' + butnumber + '.value');
                        eval('document.post.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 (( bbnumber == 6 ) && str_select)
                {theSelection = str_select;
                str_select = '';
                }
                if (theSelection) {
                        // Add tags around selection
                        document.selection.createRange().text = bbtags[bbnumber] + theSelection + bbtags[bbnumber+1];
                        txtarea.focus();
                        theSelection = '';
                        return;
                }
        }
        else{
           if (( bbnumber == 6 ) && str_select)
             {
                     mozWrap(txtarea, bbtags[bbnumber] + str_select, bbtags[bbnumber+1]);
                     str_select = '';
                     return;
             }
           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.post.addbbcode' + butnumber + '.value');
                                eval('document.post.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[15];
                        lastValue = arraypop(bbcode) - 1;        // Remove the close image tag from the list
                        document.post.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.post.addbbcode'+bbnumber+'.value += "*"');
                txtarea.focus();
                return;
        }
        storeCaret(txtarea);
}

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 selector() {
if (document.getSelection) {
  str_select = document.getSelection();
} else
if (document.selection) {
  str_select = document.selection.createRange().text;
}
bbstyle(6);
}