var imageTag = false;
var theSelection = false;


var clientPC = navigator.userAgent.toLowerCase();
var clientVer = parseInt(navigator.appVersion);

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);

// Helpline messages
b_help = "Tekst pogrubiony: [b]tekst[/b]  (alt+b)";
i_help = "Tekst kursywą: [i]tekst[/i]  (alt+i)";
u_help = "Tekst podkreślony: [u]tekst[/u]  (alt+u)";
q_help = "Cytat: [cytat]tekst[/cytat]  (alt+q)";
c_help = "Pokaż kod: [code]kod[/code]  (alt+c)";
l_help = "Lista: [list]tekst[/list] (alt+l)";
o_help = "Tekst pływający: [marq]tekst[/marq]  (alt+o)";
p_help = "Wstaw obrazek: [img]http://adres_obrazka[/img]  (alt+p)";
w_help = "Wstaw adres: [url]http://adres[/url]   (alt+w)";
a_help = "Zamknij wszystkie otwarte tagi bbCode";
s_help = "Kolor czcionki: [color=red]tekst[/color]";
f_help = "Rozmiar czcionki: [size=x-small]mały tekst[/size]";
x_help = "Lista: [*]tekst";
// Define the bbCode tags
bbcode = new Array();
bbtags = new Array('[b]','[/b]','[i]','[/i]','[u]','[/u]','[cytat]','[/cytat]','[code]','[/code]','[list]','[/list]','[marq]','[/marq]','[img]','[/img]','[url]','[/url]');
imageTag = false;
bbinput= "text";
// Shows the help messages in the helpline window
function helpline(help,n) {
this.bbinput = n;
	//document.post["helpbox_"+n].value = eval(help + "_help");
  
}
function getarraysize(thearray) {
	for (i = 0; i < thearray.length; i++) {
		if ((thearray[i] == "undefined") || (thearray[i] == "") || (thearray[i] == null))
			return i;
		}
	return thearray.length;
}
function arraypush(thearray,value) {
	thearray[ getarraysize(thearray) ] = value;
}
function arraypop(thearray) {
	thearraysize = getarraysize(thearray);
	retval = thearray[thearraysize - 1];
	delete thearray[thearraysize - 1];
	return retval;
}

function bbfontstyle(bbopen, bbclose) {
	var txtarea = document.post[bbinput];

	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 bbselected(n)
{
var selarea = document.post[n];
selIdx = document.post.textaddbbcode18.selectedIndex;
   newSel = document.post.textaddbbcode18.options[selIdx].text;
   alert("Selection has changed to: " + newSel);
bbfontstyle('[color=' + selarea.options[selarea.selectedIndex].value + ']', '[/color]');

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

function listselect(){

 emoticon( '[*]' );
 document.post.text.focus();
}
function bbstyle(bbnumber) {
	var txtarea = document.post[bbinput];

	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 (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.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;
}

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