// bbCode control by
// subBlue design
// www.subBlue.com


//********	HOW TO USE IT	****************************************//
//																	//
//	Colors		bbfontstyle(bbopen, bbclose, theForm, theField);	//
//	Font		bbfontstyle(bbopen, bbclose, theForm, theField);	//
//	Buttons		bbstyle(numero,theForm, theField);					//
//	MouseOver	helpline(letter,theForm);							//
//																	//
//******************************************************************//

/*
	_library classes:
	$Revision: 1.12 $
*/

var DHTML = (document.getElementById || document.all || document.layers);

function getObj(name)	{
	if (document.getElementById)	{
		this.obj		= document.getElementById(name);
		this.style		= document.getElementById(name).style;
	} else if (document.all)	{
		this.obj		= document.all[name];
		this.style		= document.all[name].style;
	} else if (document.layers)	{
		this.obj		= document.layers[name];
		this.style		= document.layers[name];
	}
}


function writeTXTonLayer(layerName,msg,fontColor)	{
	document.all('' + layerName + '').innerText	= '' + msg + '';
	if (!DHTML) return;
	var x = new getObj('' + layerName + '');
	x.style.color	= fontColor;
}

// Startup variables
var imageTag 		= false;
var theSelection	= false;
var theField		= "";

// 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);


// Define the bbCode tags
bbcode = new Array();
//					 0
bbtags = new Array(	'[b]','[/b]',
					'[i]','[/i]',
					'[u]','[/u]',
					'[strike]','[/strike]',
					'[quote]','[/quote]',
					'[list]','[/list]',
					'[*]','[*]',
					'[img]','[/img]',
					'[url]','[/url]',
					'[email]','[/email]'
					);
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 checkForm() {
	formErrors = false;
	if (document.forms[theForm].message.value.length < 2) {
		formErrors = "Write a message!";
	}

	if (formErrors) {
		alert(formErrors);
		return false;
	} else {
		bbstyle(-1);
		//formObj.preview.disabled = true;
		//formObj.submit.disabled = true;
		return true;
	}
}

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

function bbfontstyle(bbopen, bbclose,theForm,theField) {
	var MyForm 	= document.forms[theForm];
	var txtarea	= MyForm[theField];

	if (txtarea == undefined)	{
		alert("Select a field first!");
		return;
	}

	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
	{
		//macWrap(txtarea,bbopen,bbclose);
		txtarea.value += bbopen + bbclose;
		txtarea.focus();
	}

	storeCaret(txtarea);
}

/*
	When click on BBCode button "URL", display prompt to insert a NAME and a URL
*/
function PromptUrl(theForm,theField)	{
	var MyForm 	= document.forms[theForm];
	var txtarea	= MyForm[theField];
	theSelection = document.selection.createRange().text; // Get text selection

	if (txtarea == undefined)	{
		alert("Select a field first!");
		return;
	}

	LinkT = prompt("Please enter the URL of your link", "http://");
	if (LinkT == null || LinkT == 'http://')	{
		LinkT	= "";
	} else {
		if (theSelection) {
			// Add tags around selection
			var ht = LinkT.indexOf('http://');
			if(ht<0) { LinkT='http://'+LinkT; }
			document.selection.createRange().text = '[url=' + LinkT + ']' + theSelection + '[/url]';
			txtarea.focus();
			theSelection = '';
			return;
		} else {
			txtarea.value	+= '[url=' + LinkT + ']' + LinkT + '[/url]';
		}
	}
	//storeCaret(txtarea);
	//alert('add - theField');
}

/*
	When click on BBCode button "EMAIL", display prompt to insert a NAME and a MAIL ADDRESS
*/
function PromptMail(theForm,theField)	{
	var MyForm 	= document.forms[theForm];
	var txtarea	= MyForm[theField];
	theSelection = document.selection.createRange().text; // Get text selection

	if (txtarea == undefined)	{
		alert("Select a field first!");
		return;
	}

	NameT = (theSelection)	? theSelection : prompt("Insert a text to link", "");
	LinkT = prompt("Insert the e-mail", "");
	if (NameT == null || NameT == '')	{
		NameT	= "";
		LinkT	= "";
	} else {
		//txtarea.value	+= '[email=' + LinkT + ']' + NameT + '[/email]';
		if (theSelection) {
			// Add tags around selection
			document.selection.createRange().text = '[email=' + LinkT + ']' + theSelection + '[/email]';
			txtarea.focus();
			theSelection = '';
			return;
		} else {
			txtarea.value	+= '[email=' + LinkT + ']' + NameT + '[/email]';
		}
	}
	//storeCaret(txtarea);
	//alert('add - theField');
}

function PromptQuote(theForm,theField)	{
	var MyForm 	= document.forms[theForm];
	var txtarea	= MyForm[theField];
	theSelection = document.selection.createRange().text; // Get text selection

	if (txtarea == undefined)	{
		alert("Select a field first!");
		return;
	}

	NameT = prompt("Insert the author of the quote", "");
	if (NameT == null || NameT == '')	{
		if (theSelection) {
			// Add tags around selection
			document.selection.createRange().text = '[quote]' + theSelection + '[/quote]';
			txtarea.focus();
			theSelection = '';
			return;
		} else {
			txtarea.value	+= '[quote]' + NameT + '[/quote]';
		}
	} else {
		//	[img]/images/icon_pdf.gif[/img][url=/files/relatedProducts/DS_Nitris.pdf]Avid DS Family Product Brief (pdf)[/url]
		if (theSelection) {
			// Add tags around selection
			document.selection.createRange().text = '[quote=' + NameT + ']' + theSelection + '[/quote]';
			txtarea.focus();
			theSelection = '';
			return;
		} else {
			txtarea.value	+= '[quote=' + NameT + ']' + NameT + '[/quote]';
		}
	}
}

function bbstyle(bbnumber,theForm,theField) {
	var MyForm 	= document.forms[theForm];
	var txtarea	= MyForm[theField];

	if (txtarea == undefined)	{
		alert("Select a field first!");
		return;
	}

	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.forms[theForm].addbbcode' + butnumber + '.value');
			eval('document.forms[theForm].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]) {
			//alert(bbnumber);
				butnumber = arraypop(bbcode) - 1;
				txtarea.value += bbtags[butnumber + 1];
				buttext = eval('document.forms[theForm].addbbcode' + butnumber + '.value');
					eval('document.forms[theForm].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
			MyForm[theForm].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.forms[theForm].addbbcode'+bbnumber+'.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;
	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 macWrap(txtarea,open,close)
{
	theSelection = document.getSelection.createRange().text;
	if (!theSelection) {
		txtarea.value += bbopen + bbclose;
		txtarea.focus();
		return;
	}
	document.selection.createRange().text = bbopen + theSelection + bbclose;
	txtarea.focus();
	return;
}


// 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();
}