// 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);

// Helpline messages
b_help = "Vette tekst: [b]tekst[/b]  (alt+b)";
i_help = "Italic tekst: [i]tekst[/i]  (alt+i)";
u_help = "Onderstreepte tekst: [u]tekst[/u]  (alt+u)";
h1_help = "Extra grote kop: [h1]tekst[/h1] (alt+1)";
h2_help = "Grote kop: [h2]tekst[/h2] (alt+2)";
h3_help = "Normale kop: [h3]tekst[/h3] (alt+3)";
h4_help = "Kleine kop: [h4]tekst[/h4] (alt+4)";
quote_help = "Citeer tekst: [quote]tekst[/quote]  (alt+q)";
ul_help = "Lijst: [ul]tekst[/ul] (alt+l)";
ol_help = "Geordende lijst: [ol]tekst[/ol]  (alt+o)";
li_help = "Lijst onderdeel: [li]tekst[/li] (alt+*)";
img_help = "Afbeelding: [img]http://www.voorbeeld.nl/fotos/foto.jpg[/img]  (alt+p)";
url_help = "Link: [url=http://www.voorbeeld.nl/]Dit is een link[/url]  (alt+w)";
sluit_help = "Alle open BBcode tags sluiten (alt+s)";
kleur_help = "Letter kleur: [kleur=rood]tekst[/kleur], hex codes worden ook ondersteund";
grootte_help = "Letter grootte: [grootte=8]Kleine tekst[/grootte]";
midden_help = "Centreren: [midden]tekst[/midden] (alt+m)";
emoticon_help = "Open een scherm met alle beschikbare emoticons (alt+e)";
bestand_help = "Open een scherm met alle beschikbare bestanden (alt+f)";

// Shows the help messages in the helpline window
function helpline(help) {
	var els = document.getElementsByTagName('input');
	var elsLen = els.length;
	for (i = 0, j = 0; i < elsLen; i++) {
		if (els[i].name == 'helpbox' ) {
			els[i].value = eval(help + "_help");
			j++;
		}
	}
}


function emoticon(txtarea,text) {
	if (txtarea.createTextRange && txtarea.caretPos)
	{
		var caretPos = txtarea.caretPos;
		caretPos.text = caretPos.text + text;
		txtarea.focus();
	} else {
		mozWrap(txtarea, text,'');
	}
}


function bbfontstyle(txtarea, bbopen, bbclose) {
	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);
}




// 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]');
bbtags = new Array('[b]','[/b]','[i]','[/i]','[u]','[/u]','[h1]','[/h1]','[h2]','[/h2]','[h3]','[/h3]','[h4]','[/h4]','[img]','[/img]','[ul]','[/ul]','[ol]','[/ol]','[li]','[/li]','[quote]','[/quote]','[midden]','[/midden]');
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 bbstyle(txtarea,bbnumber) {


	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];
			
			var els = document.getElementsByTagName('input');
			var elsLen = els.length;
			for (i = 0, j = 0; i < elsLen; i++) {
				if (els[i].name == 'addbbcode' + butnumber ) {
					var button = els[i];
					j++;
				}
			}
				
				
			button.value = button.value.substr(0,(button.value.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];
	
				var els = document.getElementsByTagName('input');
				var elsLen = els.length;
				for (i = 0, j = 0; i < elsLen; i++) {
					if (els[i].name == 'addbbcode' + butnumber ) {
						var button = els[i];
						j++;
					}
				}
				
				
				button.value = button.value.substr(0,(button.value.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);
		
		var els = document.getElementsByTagName('input');
		var elsLen = els.length;
		for (i = 0, j = 0; i < elsLen; i++) {
			if (els[i].name == 'addbbcode' + bbnumber ) {
				var button = els[i];
				j++;
			}
		}
		
		
		button.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;
		
	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;
}

// 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();
}

// *********************Midian extention **********************
function urlTag(txtarea)
{

	txtarea.focus();
	theSelection = false;

	var inserttext = prompt('Vul hier de url in waar de link naar moet verwijzen', 'http://');
	if(inserttext == null)
	{
		inserttext = '';
	} else {
		inserttext = '=' + inserttext;
	}
	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 = '[url' + insertext + ']' + theSelection + '[/url]';
			txtarea.focus();
			theSelection = '';
			return;
		}
	}
	else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
	{
		mozWrap(txtarea, '[url' + inserttext + ']','[/url]');
		return;
	}
	var insertext2 = '';
	inserttext2 = prompt('Vul hier de titel van de link in', '');
	if(inserttext2 == null)
	{
		inserttext2 = '';
	}
	txtarea.value += '[url' + inserttext + ']' + inserttext2 + '[/url]';
	storeCaret(txtarea);
}
function imgPromt(inserttext){
		if (inserttext == null){
			inserttext = '';
		}
		align = prompt('Moet het plaatje links, rechts of in het midden worden uitgelijnd?\n\n   [img align=uitlijning]'+ inserttext +'[/img]', '');
		if(align == null || align == ''){
			align = '';
		} else {
			align = ' align=' + align;
		}
		size = prompt('Hoe groot moet het plaatje worden?\nLeeglaten als je de grootte niet wilt veranderen, als je 1 waarde invult wordt de bijbehorende hoogte automatisch berekend. Om zowel hoogte als breedte aan te geven moet je er een komma tussen zetten.\n   [img=hoogte,breedte' + align + ']'+ inserttext +'[/img]', 'hoogte,breedte');
		if(size == 'hoogte,breedte' || size == null || size == ''){
			size = '';
		} else {
			size = '=' + size;
		}
		return size+align;
}
function imgTag(txtarea)
{

	txtarea.focus();
	theSelection = false;

	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 = '[img' + imgPromt(theSelection) + ']' + theSelection + '[/img]';
			txtarea.focus();
			theSelection = '';
			return;
		}
	} else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0)) {
		mozWrap(txtarea, '[img' + imgPromt(txtarea.value.substring(txtarea.selectionStart, txtarea.selectionEnd)) + ']','[/img]');
		return;
	}
	inserttext = prompt('Vul hier de locatie van het plaatje in.\n\n   [img]link[/img]', 'http://');
	if(inserttext == null){
		inserttext = '';
	} else {
		txtarea.value += '[img' + imgPromt(inserttext) + ']' + inserttext + '[/img]';
	}
	storeCaret(txtarea);
}