/**

* bbCode control by subBlue design [ www.subBlue.com ]

* Includes unixsafe colour palette selector by SHS`

*/

// 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_win = ((clientPC.indexOf('win') != -1) || (clientPC.indexOf('16bit') != -1));

var baseHeight;

window.onload = initInsertions;

/**

* Shows the help messages in the helpline window

*/

function helpline(help)

{

	document.forms[form_name].helpbox.value = help_line[help];

}

/**

* Fix a bug involving the TextRange object. From

* http://www.frostjedi.com/terra/scripts/demo/caretBug.html

*/ 

function initInsertions() 

{

	var doc;

	if(document.forms[form_name])

	{

		doc = document;

	}

	else

	{

		doc = opener.document;

	}

	var textarea = doc.forms[form_name].elements[text_name];

	if (is_ie && typeof(baseHeight) != 'number')

	{

		textarea.focus();

		baseHeight = doc.selection.createRange().duplicate().boundingHeight;

		// document.body.focus();

	}

}

/**

* bbstyle

*/

function bbstyle(bbnumber)

{

	if (bbnumber != -1)

	{

		bbfontstyle(bbtags[bbnumber], bbtags[bbnumber+1]);

	}

	else

	{

		insert_text('[*]');

		document.forms[form_name].elements[text_name].focus();		

	}

}

/**

* Apply bbcodes

*/

function bbfontstyle(bbopen, bbclose)

{

	theSelection = false;

	var textarea = document.forms[form_name].elements[text_name];

	textarea.focus();

	if ((clientVer >= 4) && is_ie && is_win)

	{

		// Get text selection

		theSelection = document.selection.createRange().text;

		if (theSelection)

		{

			// Add tags around selection

			document.selection.createRange().text = bbopen + theSelection + bbclose;

			document.forms[form_name].elements[text_name].focus();

			theSelection = '';

			return;

		}

	}

	else if (document.forms[form_name].elements[text_name].selectionEnd && (document.forms[form_name].elements[text_name].selectionEnd - document.forms[form_name].elements[text_name].selectionStart > 0))

	{

		mozWrap(document.forms[form_name].elements[text_name], bbopen, bbclose);

		document.forms[form_name].elements[text_name].focus();

		theSelection = '';

		return;

	}

	//The new position for the cursor after adding the bbcode

	var caret_pos = getCaretPosition(textarea).start;

	var new_pos = caret_pos + bbopen.length;		

	// Open tag

	insert_text(bbopen + bbclose);

	// Center the cursor when we don't have a selection

	// Gecko and proper browsers

	if (!isNaN(textarea.selectionStart))

	{

		textarea.selectionStart = new_pos;

		textarea.selectionEnd = new_pos;

	}	

	// IE

	else if (document.selection)

	{

		var range = textarea.createTextRange(); 

		range.move("character", new_pos); 

		range.select();

		storeCaret(textarea);

	}

	textarea.focus();

	return;

}

/**

* Insert text at position

*/

function insert_text(text, spaces, popup)

{

	var textarea;

	if (!popup)

	{

		textarea = document.forms[form_name].elements[text_name];

	}

	else

	{

		textarea = opener.document.forms[form_name].elements[text_name];

	}

	if (spaces)

	{

		text = ' ' + text + ' ';

	}

	if (!isNaN(textarea.selectionStart))

	{

		var sel_start = textarea.selectionStart;

		var sel_end = textarea.selectionEnd;

		mozWrap(textarea, text, '')

		textarea.selectionStart = sel_start + text.length;

		textarea.selectionEnd = sel_end + text.length;

	}	

	else if (textarea.createTextRange && textarea.caretPos)

	{

		if (baseHeight != textarea.caretPos.boundingHeight) 

		{

			textarea.focus();

			storeCaret(textarea);

		}

		var caret_pos = textarea.caretPos;

		caret_pos.text = caret_pos.text.charAt(caret_pos.text.length - 1) == ' ' ? caret_pos.text + text + ' ' : caret_pos.text + text;

	}

	else

	{

		textarea.value = textarea.value + text;

	}

	if (!popup)

	{

		textarea.focus();

	}

}

/**

* Add inline attachment at position

*/

function attach_inline(index, filename)

{

	insert_text('[attachment=' + index + ']' + filename + '[/attachment]');

	document.forms[form_name].elements[text_name].focus();

}

/**

* Add quote text to message

*/

function addquote(post_id, username)

{

	var message_name = 'message_' + post_id;

	var theSelection = '';

	var divarea = false;

	if (document.all)

	{

		divarea = document.all[message_name];

	}

	else

	{

		divarea = document.getElementById(message_name);

	}

	// Get text selection - not only the post content :(

	if (window.getSelection)

	{

		theSelection = window.getSelection().toString();

	}

	else if (document.getSelection)

	{

		theSelection = document.getSelection();

	}

	else if (document.selection)

	{

		theSelection = document.selection.createRange().text;

	}

	if (theSelection == '' || typeof theSelection == 'undefined' || theSelection == null)

	{

		if (divarea.innerHTML)

		{

			theSelection = divarea.innerHTML.replace(/
/ig, '\n');

			theSelection = theSelection.replace(/<br\/>/ig, '\n');

			theSelection = theSelection.replace(/<\;/ig, '<');

			theSelection = theSelection.replace(/>\;/ig, '>');

			theSelection = theSelection.replace(/&\;/ig, '&';;			

		}

		else if (document.all)

		{

			theSelection = divarea.innerText;

		}

		else if (divarea.textContent)

		{

			theSelection = divarea.textContent;

		}

		else if (divarea.firstChild.nodeValue)

		{

			theSelection = divarea.firstChild.nodeValue;

		}

	}

	if (theSelection)

	{

		insert_text('[quote="' + username + '"]' + theSelection + '[/quote]');

	}

	return;

}

/**

* From http://www.massless.org/mozedit/

*/

function mozWrap(txtarea, open, close)

{

	var selLength = txtarea.textLength;

	var selStart = txtarea.selectionStart;

	var selEnd = txtarea.selectionEnd;

	var scrollTop = txtarea.scrollTop;

	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;

	txtarea.selectionStart = selEnd + open.length + close.length;

	txtarea.selectionEnd = txtarea.selectionStart;

	txtarea.focus();

	txtarea.scrollTop = scrollTop;

	return;

}

/**

* Insert at Caret 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();

	}

}

/**

* Color pallette

*/

function colorPalette(dir, width, height)

{

	var r = 0, g = 0, b = 0;

	var numberList = new Array(6);

	var color = '';

	numberList[0] = '00';

	numberList[1] = '40';

	numberList[2] = '80';

	numberList[3] = 'BF';

	numberList[4] = 'FF';

	document.writeln('');

	for (r = 0; r < 5; r++)

	{

		if (dir == 'h')

		{

			document.writeln('');

		}

		for (g = 0; g < 5; g++)

		{

			if (dir == 'v')

			{

				document.writeln('');

			}

			for (b = 0; b < 5; b++)

			{

				color = String(numberList[r]) + String(numberList[g]) + String(numberList[b]);

				document.write('');

				document.write('');

				document.writeln('');

			}

			if (dir == 'v')

			{

				document.writeln('');

			}

		}

		if (dir == 'h')

		{

			document.writeln('');

		}

	}

	document.writeln('');

}

/**

* Caret Position object

*/

function caretPosition()

{

	var start = null;

	var end = null;

}

/**

* Get the caret position in an textarea

*/

function getCaretPosition(txtarea)

{

	var caretPos = new caretPosition();

	// simple Gecko/Opera way

	if (txtarea.selectionStart || txtarea.selectionStart == 0)

	{

		caretPos.start = txtarea.selectionStart;

		caretPos.end = txtarea.selectionEnd;

	}

	// dirty and slow IE way

	else if (document.selection)

	{

		// get current selection

		var range = document.selection.createRange();

		// a new selection of the whole textarea

		var range_all = document.body.createTextRange();

		range_all.moveToElementText(txtarea);

		// calculate selection start point by moving beginning of range_all to beginning of range

		var sel_start;

		for (sel_start = 0; range_all.compareEndPoints('StartToStart', range) < 0; sel_start++)

		{

			range_all.moveStart('character', 1);

		}

		txtarea.sel_start = sel_start;

		// we ignore the end value for IE, this is already dirty enough and we don't need it

		caretPos.start = txtarea.sel_start;

		caretPos.end = txtarea.sel_start;			

	}

	return caretPos;

}