// Helpbox messages
default_help = "Ga over de knoppen heen voor een beschrijving";
b_help = "Vet: [b]tekst[/b]";
i_help = "Schuingedrukt: [i]tekst[/i]";
u_help = "Onderstreept: [u]tekst[/u]";
align_left_help = "Links uitlijnen: [align=left]tekst[/align]";
align_center_help = "Centreren: [align=center]tekst[/align]";
align_right_help = "Rechts uitlijnen: [align=right]tekst[/align]";
ordered_list_help = "Genummerde lijst: [list=1] [*]Item 1[/*] [*]Item 2[/*] [/list]";
unordered_list_help = "Niet-genummerde lijst: [list] [*]Item 1[/*] [*]Item 2[/*] [/list]";
url_help = "URL: [url]http://www.example.com[/url] of [url=http://www.example.com]Voorbeeld[/url]";
img_help = "Afbeelding: [img]http://www.example.com/image.jpg[/img]";
email_help = "E-mailadres: [email]address@example.com[/email] or [email=address@example.com]Voorbeeld[/email]";
form_help = "Formulier: [form]formuliernaam[/form]";
html_help = "HTML (enters worden genegeerd): [html]tekst[/html]";
color_help = "Kleur: [color=color]text[/color] or [color=#hex]tekst[/color]";
size_help = "Tekstgrootte: [size=size]tekst[/size] of [size=12px]tekst[/size] of [size=10pt]tekst[/size]";

// Show Helpbox text
function helpBox(id, help) {
	document.getElementById('helpbox_'+id).innerHTML = eval(help + "_help");
}

// Add BBcode
function addBBcode(id, codeOpen, codeClose) {
	bbArea = divElement = document.getElementById(id);
	bbArea.focus();
	
	// Set codes
	if (!codeClose) codeClose = '[/' + codeOpen + ']';
	else codeClose = '[/' + codeClose + ']';
	codeOpen = '[' + codeOpen + ']';
	
	// Gecko
	if (bbArea.selectionStart || bbArea.selectionStart == '0') {
		var startPos = bbArea.selectionStart;
		var endPos = bbArea.selectionEnd;
		
		mozWrap(bbArea, codeOpen, codeClose);
	}

	// Internet Explorer
	else if (document.selection && document.selection.createRange) {
		sel = document.selection.createRange();
		sel.text = codeOpen + sel.text + codeClose;
		storeCaret(bbArea);
	}

	// Others
	else {
		bbArea.value += codeOpen + codeClose;
	}
	
	bbArea.focus();
	return;
}

// 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();
	}
}

// From http://www.massless.org/mozedit/
function mozWrap(bbArea, codeOpen, codeClose)
{
	var selLength = bbArea.textLength;
	var selStart = bbArea.selectionStart;
	var selEnd = bbArea.selectionEnd;
	var scrollTop = bbArea.scrollTop;

	if (selEnd == 1 || selEnd == 2) selEnd = selLength;

	var s1 = (bbArea.value).substring(0, selStart);
	var s2 = (bbArea.value).substring(selStart, selEnd)
	var s3 = (bbArea.value).substring(selEnd, selLength);

	bbArea.value = s1 + codeOpen + s2 + codeClose + s3;
	bbArea.selectionStart = selEnd + codeOpen.length + codeClose.length;
	bbArea.selectionEnd = bbArea.selectionStart;
	bbArea.focus();
	bbArea.scrollTop = scrollTop;

	return;
}