// Borrowed and rewritten from bb, 
// do you mind? *blink blink* ;-)
//
// bbCode control by
// subBlue design
// www.subBlue.com
var imageTag = false;
var theSelection = false;

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

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

codearray = new Array();
tagarray = new Array('[b]','[/b]','[i]','[/i]','[u]','[/u]','[code]','[/code]','[quote]','[/quote]','[img]','[/img]','[url]','[/url]');
imageTag = false;

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 arraypop(thearray) 
{
	thearraysize = getarraysize(thearray);
	retval = thearray[thearraysize - 1];
	delete thearray[thearraysize - 1];
	return retval;
}

function arraypush(thearray,value) 
{
	thearray[getarraysize(thearray)] = value;
}

function fontstyle2(var1, var2) 
{
	var txtarea = document.process.REASON;

	if ((clientVer >= 4) && is_ie && is_win) 
	{
		theSelection = document.selection.createRange().text;
		if (!theSelection) 
		{
			txtarea.value += var1 + var2;
			txtarea.focus();
			return;
		}
		document.selection.createRange().text = var1 + theSelection + var2;
		txtarea.focus();
		return;
	}
	else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
	{
		mozWrap(txtarea, var1, var2);
		return;
	}
	else {
		txtarea.value += var1 + var2;
		txtarea.focus();
	}
	storeCaret(txtarea);
}

function fontstyle(var1, var2) 
{
	var txtarea = document.postform.textbody;

	if ((clientVer >= 4) && is_ie && is_win) 
	{
		theSelection = document.selection.createRange().text;
		if (!theSelection) 
		{
			txtarea.value += var1 + var2;
			txtarea.focus();
			return;
		}
		document.selection.createRange().text = var1 + theSelection + var2;
		txtarea.focus();
		return;
	}
	else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
	{
		mozWrap(txtarea, var1, var2);
		return;
	}
	else {
		txtarea.value += var1 + var2;
		txtarea.focus();
	}
	storeCaret(txtarea);
}


function addstyle(mvar) 
{
	var txtarea = document.postform.textbody;

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

	if (mvar == -1) 
	{
		while (codearray[0]) 
		{
			uvar = arraypop(codearray) - 1;
			txtarea.value += tagarray[uvar + 1];
		}
		imageTag = false;
		txtarea.focus();
		return false;
	}

	if ((clientVer >= 4) && is_ie && is_win)
	{
		theSelection = document.selection.createRange().text; // Get text selection
		if (theSelection) 
		{

			document.selection.createRange().text = tagarray[mvar] + theSelection + tagarray[mvar+1];
			txtarea.focus();
			theSelection = '';
			return false;
		}
	}
	else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
	{
		mozWrap(txtarea, tagarray[mvar], tagarray[mvar+1]);
		return false;
	}

	for (i = 0; i < codearray.length; i++) 
	{
		if (codearray[i] == mvar+1) 
		{
			bblast = i;
			donotinsert = true;
		}
	}

	if (donotinsert) 
	{
		while (codearray[bblast]) 
		{
				uvar = arraypop(codearray) - 1;
				txtarea.value += tagarray[uvar + 1];
				buttext = eval('document.postform.addcode' + uvar + '.value');
				eval('document.postform.addcode' + uvar + '.value ="' + buttext.substr(0,(buttext.length - 1)) + '"');
				imageTag = false;
			}
			txtarea.focus();
			return false;
	} 
	else {

		txtarea.value += tagarray[mvar];
		if ((mvar == 14) && (imageTag == false)) imageTag = 1;
		arraypush(codearray,mvar+1);
		eval('document.postform.addcode'+mvar+'.value += "*"');
		txtarea.focus();
		return false;
	}
	storeCaret(txtarea);
	return false;
}

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 false;
}

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