<!--
// 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 posts
b_help = "Чер текст: [b]текст[/b] (alt+b)";
i_help = "Курсив текс: [i]текст[/i] (alt+i)";
u_help = "Подчертан текст: [u]текст[/u] (alt+u)";
q_help = "Цитат: [quote]текст[/quote] (alt+q)";
c_help = "Програмен код: [code]код[/code] (alt+c)";
l_help = "Списък: [list]текст[/list] (alt+l)";
o_help = "Подреден списък: [list=]текст[/list] (alt+o)";
p_help = "Изображение: [img]http://адреса.на.изображението[/img] (alt+p)";
w_help = "Връзка: [url]http://url[/url] or [url=http://url]Описание[/url] (alt+w)";
a_help = "Затвори всички BBCode тагове";
s_help = "Цвят на текста: [color=red]text[/color] Mожете да ползвате и color=#FF0000";
f_help = "Размер на текста: [size=x-small]малък текст[/size]";

// 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]','','','','','[sup]','[/sup]','[sub]','[/sub]');
smiletags = new Array(' :) ',' :D ',' :( ',' 8) ',' :P ',' ;) ',' ;( ',' :| ',' :S ',' :* ',' (blush) ',' :^) ',' |-( ',' (inlove) ',' ]:) ',' (talk) ',' (yawn) ',' |-) ',' (puke) ',' (doh) ',' (mm) ',' :@ ',' (wasntme) ',' (party) ',' 8-| ',' :x ',' (hi) ',' (call) ',' (devil) ',' (angel) ',' (envy) ',' (wait) ',' (hug) ',' (makeup) ',' (chuckle) ',' (clap) ',' (think) ',' (rofl) ',' (whew) ',' (happy) ',' (smirk) ',' (nod) ',' (shake) ',' (punch) ',' (emo) ',' (y) ',' (n) ',' (handshake) ',' (skype) ',' (h) ',' (u) ',' (mail) ',' (F) ',' (rain) ',' (sun) ',' (time) ',' (music) ',' (movie) ',' (coffee) ',' (pizza) ',' (cash) ',' (flex) ',' (^) ',' (beer) ',' (d) ',' (dance) ',' (ninja) ',' (*) ',' (mooning) ',' (finger) ',' (bandit) ',' (drunk) ',' (smoke) ',' (toivo) ',' (rock) ',' (headbang) ',' (bug) ',' (fubar) ',' (poolparty) ',' (swear) ',' (tmi) ',' (bow) ',' (sweat) ',' :O ',' (heidy) ');
imageTag = false;

// Shows the help posts in the helpline window
function helpline(help) {
	document.editform.value = eval(help + "_help");
}


// 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;
}

//функция за показване на прозорец за потвърждения при изтриване
function confirmAction(message, url)	{
	if (confirm('Сигурен ли сте че искате да '+message+'?'))
	{
		window.location=url;
	}
}

function confirmAction_en(message, url)	{
	if (confirm('Are you sure that you want to '+message+'?'))
	{
		window.location=url;
	}
}

function confirmChecker(message)	{
	if (confirm('Сигурен ли сте че искате да '+message+'?'))
	{
		document.editform.action="tests.php?method=one_step3";
		document.editform.submit()
	}
	else {}
}

//потвърждение при затваряне
function confirmClose(message, type)	{
	if(type == "test")	{
		if(message == "new" || message == "new_step2")	{
			var message = "създаването на нов тест";
			var message1 = "прекъснете създаването на теста";
		}
		else if(message == "editone" || message == "editone_step2")	{
			var message = "редактирането на теста";
			var message1 = "прекъснете редактирането на теста";
		}
		else if(message == "one_step2")	{
			var message = "решаването на теста и ако го прекъснете без да го проверите ще получите служебен СЛАБ 2";
			var message1 = "прекъснете решаването на теста без да го проверите";
		}
	}
	else if(type == "lesson")	{
		if(message == "new" || message == "new_step2")	{
			var message = "създаването на нов урок";
			var message1 = "прекъснете създаването на урока";
		}
		else if(message == "editone" || message == "editone_step2")	{
			var message = "редактирането на урока";
			var message1 = "прекъснете редактирането на урока";
		}
	}
	if (confirm('ВНИМАНИЕ!!! Не сте довършили ' + message + '! Сигурен ли сте че искате да затворите прозореца и '+message1+'?'))
	{
		return true;
	}
	else {
		return false;
	}
}


function checkForm() {

	formErrors = false;

	if (document.editform.message.value.length < 2 && document.editform.name.value.length < 2) {
		formErrors = "Трябва да въведете име и мнение!";
	}
	else if(document.editform.name.value.length < 2)	{
		formErrors = "Трябва да въведете име!";
	}
	else if(document.editform.message.value.length < 2)	{
		formErrors = "Трябва да въведете мнение!";
	}
	

	if (formErrors) {
		alert(formErrors);
		return false;
	} else {
		document.editform.submit();
		bbstyle(-1);
		//formObj.preview.disabled = true;
		//formObj.submit.disabled = true;
		return true;
	}
}


function checkForm_en() {

	formErrors = false;

	if (document.editform.message.value.length < 2 && document.editform.name.value.length < 2) {
		formErrors = "Please type your name and message!";
	}
	else if(document.editform.name.value.length < 2)	{
		formErrors = "Please type your name!";
	}
	else if(document.editform.message.value.length < 2)	{
		formErrors = "Please type your message!";
	}
	

	if (formErrors) {
		alert(formErrors);
		return false;
	} else {
		document.editform.submit();
		bbstyle(-1);
		//formObj.preview.disabled = true;
		//formObj.submit.disabled = true;
		return true;
	}
}


function checkForm_lessons() {

	formErrors = false;

	if(document.editform.message.value.length < 2)	{
		formErrors = "Трябва да въведете мнение!";
	}
	

	if (formErrors) {
		alert(formErrors);
		return false;
	} else {
		document.editform.submit();
		bbstyle(-1);
		//formObj.preview.disabled = true;
		//formObj.submit.disabled = true;
		return true;
	}
}


function emoticon(text) {
	var txtarea = document.editform.message;
	text = ' ' + text + ' ';
	if (txtarea.createTextRange && txtarea.caretPos) {
		var caretPos = txtarea.caretPos;
		caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? caretPos.text + text + ' ' : caretPos.text + text;
		txtarea.focus();
	} else {
		txtarea.value  += text;
		txtarea.focus();
	}
}

function bbfontstyle(bbopen, bbclose) {
	var txtarea = document.editform.message;

	if ((clientVer >= 4) && is_ie && is_win) {
		theSelection = document.selection.createRange().text; // Get text selection
		//IE support
		if (document.selection) {
			txtarea.focus();
			sel = document.selection.createRange();
			sel.text = bbopen + theSelection + bbclose;
		}
		//MOZILLA/NETSCAPE support
		else if (txtarea.selectionStart || txtarea.selectionStart == 0) {
			var startPos = txtarea.selectionStart;
			var endPos = txtarea.selectionEnd;
			txtarea.value = txtarea.value.substring(0, startPos) + bbopen + bbclose + txtarea.value.substring(endPos, txtarea.value.length);
		}
		else {
			txtarea.value += bbopen + bbclose;
		}
		
		txtarea.focus();
		return;
	}
	else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
	{
		mozWrap(txtarea, bbopen, bbclose);
		return;
	}
	else
	{
		//IE support
		if (document.selection) {
			txtarea.focus();
			sel = document.selection.createRange();
			sel.text = bbopen + theSelection + bbclose;
		}
		//MOZILLA/NETSCAPE support
		else if (txtarea.selectionStart || txtarea.selectionStart == 0) {
			var startPos = txtarea.selectionStart;
			var endPos = txtarea.selectionEnd;
			txtarea.value = txtarea.value.substring(0, startPos) + bbopen + bbclose + txtarea.value.substring(endPos, txtarea.value.length);
		}
		else {
			txtarea.value += bbopen + bbclose;
		}
		txtarea.focus();
	}
	storeCaret(txtarea);
}


function bbfontstyle1(bbopen1, bbopen_num) {
	var bbopen = '[color='+bbopen1+']';
	var bbclose='[/color]';
	var txtarea = document.getElementById('q['+bbopen_num+']');

	if ((clientVer >= 4) && is_ie && is_win) {
		theSelection = document.selection.createRange().text; // Get text selection
		//IE support
		if (document.selection) {
			txtarea.focus();
			sel = document.selection.createRange();
			sel.text = bbopen + theSelection + bbclose;
		}
		//MOZILLA/NETSCAPE support
		else if (txtarea.selectionStart || txtarea.selectionStart == 0) {
			var startPos = txtarea.selectionStart;
			var endPos = txtarea.selectionEnd;
			txtarea.value = txtarea.value.substring(0, startPos) + bbopen + bbclose + txtarea.value.substring(endPos, txtarea.value.length);
		}
		else {
			txtarea.value += bbopen + bbclose;
		}
		
		txtarea.focus();
		return;
	}
	else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
	{
		mozWrap(txtarea, bbopen, bbclose);
		return;
	}
	else
	{
		//IE support
		if (document.selection) {
			txtarea.focus();
			sel = document.selection.createRange();
			sel.text = bbopen + theSelection + bbclose;
		}
		//MOZILLA/NETSCAPE support
		else if (txtarea.selectionStart || txtarea.selectionStart == 0) {
			var startPos = txtarea.selectionStart;
			var endPos = txtarea.selectionEnd;
			txtarea.value = txtarea.value.substring(0, startPos) + bbopen + bbclose + txtarea.value.substring(endPos, txtarea.value.length);
		}
		else {
			txtarea.value += bbopen + bbclose;
		}
		txtarea.focus();
	}
	storeCaret(txtarea);
}


function bbstyle(bbnumber) {
	var txtarea = document.editform.message;

	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;
			if (document.selection) {
				txtarea.focus();
				sel = document.selection.createRange();
				sel.text =  bbtags[butnumber + 1];
			}
			//MOZILLA/NETSCAPE support
			else if (txtarea.selectionStart || txtarea.selectionStart == 0) {
				var startPos = txtarea.selectionStart;
				var endPos = txtarea.selectionEnd;
				txtarea.value = txtarea.value.substring(0, startPos)+  bbtags[butnumber + 1]+ txtarea.value.substring(endPos, txtarea.value.length);
			}
			else {
				txtarea.value += bbtags[butnumber + 1];
			}
			buttext = eval('document.editform.addbbcode' + butnumber + '.value');
			eval('document.editform.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]) {
				butnumber = arraypop(bbcode) - 1;
				
				if (document.selection) {
					txtarea.focus();
					sel = document.selection.createRange();
					sel.text =  bbtags[butnumber + 1];
				}
				//MOZILLA/NETSCAPE support
				else if (txtarea.selectionStart || txtarea.selectionStart == 0) {
					var startPos = txtarea.selectionStart;
					var endPos = txtarea.selectionEnd;
					txtarea.value = txtarea.value.substring(0, startPos)+  bbtags[butnumber + 1]+ txtarea.value.substring(endPos, txtarea.value.length);
				}
				else {
					txtarea.value += bbtags[butnumber + 1];
				}
				
				buttext = eval('document.editform.addbbcode' + butnumber + '.value');
				eval('document.editform.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
			if (document.selection) {
				txtarea.focus();
				sel = document.selection.createRange();
				sel.text =  bbtags[15];
			}
			//MOZILLA/NETSCAPE support
			else if (txtarea.selectionStart || txtarea.selectionStart == 0) {
				var startPos = txtarea.selectionStart;
				var endPos = txtarea.selectionEnd;
				txtarea.value = txtarea.value.substring(0, startPos)+  bbtags[15] + txtarea.value.substring(endPos, txtarea.value.length);
			}
			else {
				txtarea.value += bbtags[15];
			}
			lastValue = arraypop(bbcode) - 1;	// Remove the close image tag from the list
			document.editform.addbbcode14.value = "Изображение";	// Return button back to normal state
			imageTag = false;
		}

		// Open tag
		if (document.selection) {
			txtarea.focus();
			sel = document.selection.createRange();
			sel.text = bbtags[bbnumber];
		}
		//MOZILLA/NETSCAPE support
		else if (txtarea.selectionStart || txtarea.selectionStart == 0) {
			var startPos = txtarea.selectionStart;
			var endPos = txtarea.selectionEnd;
			txtarea.value = txtarea.value.substring(0, startPos)+ bbtags[bbnumber]+ txtarea.value.substring(endPos, txtarea.value.length);
		}
		else {
			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.editform.addbbcode'+bbnumber+'.value += "*"');
		txtarea.focus();
		return;
	}
	storeCaret(txtarea);
}


function bbstyle1(bbnumber,idpole) {
	var txtarea = document.getElementById('q['+idpole+']');
	
	if(bbcode[idpole])	{} //да не изтрие предишния вече дефиниран масив
	else {
		bbcode[idpole] = new Array();
	}
	
	var idpole1 = idpole;
	txtarea.focus();
	donotinsert = false;
	theSelection = false;
	bblast = 0;

	if (bbnumber == -1) { // Close all open tags & default button names
		while (bbcode[idpole][0]) {
			butnumber = arraypop(bbcode[idpole]) - 1;
			if (document.selection) {
				txtarea.focus();
				sel = document.selection.createRange();
				sel.text =  bbtags[butnumber + 1];
			}
			//MOZILLA/NETSCAPE support
			else if (txtarea.selectionStart || txtarea.selectionStart == 0) {
				var startPos = txtarea.selectionStart;
				var endPos = txtarea.selectionEnd;
				txtarea.value = txtarea.value.substring(0, startPos)+  bbtags[butnumber + 1]+ txtarea.value.substring(endPos, txtarea.value.length);
			}
			else {
				txtarea.value += bbtags[butnumber + 1];
			}
			buttext = eval('document.editform.addbbcode' + butnumber + '_' + idpole + '.value');
			eval('document.editform.addbbcode' + butnumber + '_' + idpole + '.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[idpole].length; i++) {
		if (bbcode[idpole][i] == bbnumber+1) {
			bblast = i;
			donotinsert = true;
		}
	}

	if (donotinsert) {	// Close all open tags up to the one just clicked & default button names
		while (bbcode[idpole][bblast]) {
				butnumber = arraypop(bbcode[idpole]) - 1;
				
				if (document.selection) {
					txtarea.focus();
					sel = document.selection.createRange();
					sel.text =  bbtags[butnumber + 1];
				}
				//MOZILLA/NETSCAPE support
				else if (txtarea.selectionStart || txtarea.selectionStart == 0) {
					var startPos = txtarea.selectionStart;
					var endPos = txtarea.selectionEnd;
					txtarea.value = txtarea.value.substring(0, startPos)+  bbtags[butnumber + 1]+ txtarea.value.substring(endPos, txtarea.value.length);
				}
				else {
					txtarea.value += bbtags[butnumber + 1];
				}
				
				buttext = eval('document.editform.addbbcode' + butnumber + '_' + idpole + '.value');
				eval('document.editform.addbbcode' + butnumber + '_' + idpole + '.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
			if (document.selection) {
				txtarea.focus();
				sel = document.selection.createRange();
				sel.text =  bbtags[15];
			}
			//MOZILLA/NETSCAPE support
			else if (txtarea.selectionStart || txtarea.selectionStart == 0) {
				var startPos = txtarea.selectionStart;
				var endPos = txtarea.selectionEnd;
				txtarea.value = txtarea.value.substring(0, startPos)+  bbtags[15] + txtarea.value.substring(endPos, txtarea.value.length);
			}
			else {
				txtarea.value += bbtags[15];
			}
			lastValue = arraypop(bbcode[idpole]) - 1;	// Remove the close image tag from the list
			eval('document.editform.addbbcode14_' + idpole + '.value = "Изобр."');	// Return button back to normal state
			imageTag = false;
		}

		// Open tag
		if (document.selection) {
			txtarea.focus();
			sel = document.selection.createRange();
			sel.text = bbtags[bbnumber];
		}
		//MOZILLA/NETSCAPE support
		else if (txtarea.selectionStart || txtarea.selectionStart == 0) {
			var startPos = txtarea.selectionStart;
			var endPos = txtarea.selectionEnd;
			txtarea.value = txtarea.value.substring(0, startPos)+ bbtags[bbnumber]+ txtarea.value.substring(endPos, txtarea.value.length);
		}
		else {
			txtarea.value += bbtags[bbnumber];
		}
		
		if ((bbnumber == 14) && (imageTag == false)) imageTag = 1; // Check to stop additional tags after an unclosed image tag
		arraypush(bbcode[idpole],bbnumber+1);
		eval('document.editform.addbbcode'+bbnumber + '_' + idpole + '.value += "*"');
		txtarea.focus();
		return;
	}
	storeCaret(txtarea);
}


function smilestyle(smilenumber) {
	var txtarea = document.editform.message;
	//IE support
	if (document.selection) {
		txtarea.focus();
		sel = document.selection.createRange();
		sel.text = smiletags[smilenumber];
	}
	//MOZILLA/NETSCAPE support
	else if (txtarea.selectionStart || txtarea.selectionStart == 0) {
		var startPos = txtarea.selectionStart;
		var endPos = txtarea.selectionEnd;
		txtarea.value = txtarea.value.substring(0, startPos)+ smiletags[smilenumber]+ txtarea.value.substring(endPos, txtarea.value.length);
	}
	else {
		txtarea.value += smiletags[smilenumber];
	}
	txtarea.focus();
}


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;
}

// 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();
}

//промяна на размера на шрифта

var min_size=8;
var max_size=18;
var normal_size=11;
function increaseFontSize() {
	var p = document.getElementById('lesson_text');
	if(p.style.fontSize) {
		var s = parseInt(p.style.fontSize.replace("px",""));
	}
	else {
		var s = 11;
	}
	if(s!=max_size) {
		s += 1;
	}
	p.style.fontSize = s+"px"
	
}
function decreaseFontSize() {
    var p = document.getElementById('lesson_text');
	if(p.style.fontSize) {
		var s = parseInt(p.style.fontSize.replace("px",""));
	}
	else {
		var s = 11;
	}
	if(s!=min_size) {
		s -= 1;
	}
	p.style.fontSize = s+"px"
}
function normalFontSize() {
	var p = document.getElementById('lesson_text');
	if(p.style.fontSize) {
		var s = parseInt(p.style.fontSize.replace("px",""));
	}
	else {
		var s = 11;
	}
	s = normal_size;
	p.style.fontSize = s+"px"
}
//-->