// 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
// Moved to user-fordisplay.xd
b_help = "Pogrubiony tekst: [b]tekst[/b]";
p_help = "Paragraf: [p]tekst[/p]";
i_help = "Pochylony tekst: [i]tekst[/i]";
q_help = "Cytat: [quote]tekst[/quote]";
l_help = "Wstaw URL: [link]http://adres[/link] albo [link=http://adres]adres tekst[/link]";
c_help = "Zamknij wszystkie otwarte tagi";

// Define the bbCode tags
bbcode = new Array();
bbtags = new Array('[b]','[/b]','[i]','[/i]','[quote]','[/quote]','[link]','[/link]','[p]','[/p]');
imageTag = false;

// Shows the help messages in the helpline window
function helpline(help) {
    d = document.getElementById("helpbox");
    d.innerHTML = eval(help + "_help");
}


// Replacement for arrayname.length property
function getarraysize(setarray) {
    for (i = 0; i < setarray.length; i++) {
        if ((setarray[i] == "undefined") || (setarray[i] == "") || (setarray[i] == null))
            return i;
        }
    return setarray.length;
}

// Replacement for arrayname.push(value) not implemented in IE until version 5.5
// Appends element to the array
function arraypush(setarray,value) {
    setarray[ getarraysize(setarray) ] = value;
}

// Replacement for arrayname.pop() not implemented in IE until version 5.5
// Removes and returns the last element of an array
function arraypop(setarray) {
    arrsize = getarraysize(setarray);
    retval = setarray[arrsize - 1];
    delete setarray[arrsize - 1];
    return retval;
}

function bbstyle(bbindex) {

    
    var txtarea = document.getElementsByTagName('textarea')[0]
    
	//	var txtarea = document.entriesCommentText.getElementsByTagName('textarea')[0];


    donotinsert = false;
    theSelection = false;
    bblast = 0;

    if (bbindex == -1) { // Close all open tags & default button names
        while (bbcode[0]) {
            butnumber = arraypop(bbcode) - 1;
            txtarea.value += bbtags[butnumber + 1];
            var elBBm = getElBB('b' + butnumber);
        	elBBm.className = '';
//            buttext = eval('document.entriesCommentText.bbcode' + butnumber + '.value');
//            eval('document.entriesCommentText.bbcode' + 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[bbindex] + theSelection + bbtags[bbindex+1];
            txtarea.focus();
            theSelection = '';
            return;
        }
    }
    else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
    {
        mozWrap(txtarea, bbtags[bbindex], bbtags[bbindex+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] == bbindex+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 elBBm = getElBB('b' + bbindex);
        		elBBm.className = '';
//                buttext = eval('document.entriesCommentText.bbcode' + butnumber + '.value');
//                eval('document.entriesCommentText.bbcode' + butnumber + '.value ="' + buttext.substr(0,(buttext.length - 1)) + '"');
                imageTag = false;
            }
            txtarea.focus();
            return;
    } else { // Open tags

        if (imageTag && (bbindex != 14)) {        // Close image tag before adding another
            txtarea.value += bbtags[15];
            lastValue = arraypop(bbcode) - 1;    // Remove the close image tag from the list
            document.entriesCommentText.bbcode14.value = "Img";    // Return button back to normal state
            imageTag = false;
        }

        // Open tag
        txtarea.value += bbtags[bbindex];
        if ((bbindex == 14) && (imageTag == false)) imageTag = 1; // Check to stop additional tags after an unclosed image tag
        arraypush(bbcode,bbindex+1);
        var elBBm = getElBB('b' + bbindex);
        elBBm.className = 'active';
//        eval('document.entriesCommentText.bbcode'+bbindex+'.value += "*"');
        txtarea.focus();
        return;
    }
    storeCaret(txtarea);
}

function getElBB(id) {
	
	return document.getElementById(id);
}

// 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;
}

// 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();
}


function bbcode_exec2() {
	
	timeoutID = window.setTimeout("bbcode_exec()", 1000);
}


bbcode_exec = function() {
  
  var el1 = document.getElementById("b0"); 
  var el2 = document.getElementById("b2"); 
  var el3 = document.getElementById("b4"); 
  var el4 = document.getElementById("b6"); 
  var el5 = document.getElementById("b8"); 
  var el6 = document.getElementById("closeTag"); 
  
  if(is_ie) {  
	 
	 el1.attachEvent ('onclick', function(event) { bbstyle(0) });
	 el1.attachEvent ('onmousemove', function(event) { helpline('b') });

	 el2.attachEvent ('onclick', function(event) { bbstyle(2) });
	 el2.attachEvent ('onmousemove', function(event) { helpline('i') });

	 el3.attachEvent ('onclick', function(event) { bbstyle(4) });
	 el3.attachEvent ('onmousemove', function(event) { helpline('q') });

	 el4.attachEvent ('onclick', function(event) { bbstyle(6) });
	 el4.attachEvent ('onmousemove', function(event) { helpline('l') });

	 el5.attachEvent ('onclick', function(event) { bbstyle(8) });
	 el5.attachEvent ('onmousemove', function(event) { helpline('p') });

	 el6.attachEvent ('onclick', function(event) { bbstyle(-1) });
	 el6.attachEvent ('onmousemove', function(event) { helpline('c') });  
  
  
  } else {
	 
	 el1.addEventListener("click", function(event) { bbstyle(0) }, false);
	 el1.addEventListener("mousemove", function(event) { helpline('b') }, false);

	 el2.addEventListener("click", function(event) { bbstyle(2) }, false);
	 el2.addEventListener("mousemove", function(event) { helpline('i') }, false);
	 
	 el3.addEventListener("click", function(event) { bbstyle(4) }, false);
	 el3.addEventListener("mousemove", function(event) { helpline('q') }, false);
	 
	 el4.addEventListener("click", function(event) { bbstyle(6) }, false);
	 el4.addEventListener("mousemove", function(event) { helpline('l') }, false);
	 
	 el5.addEventListener("click", function(event) { bbstyle(8) }, false);
	 el5.addEventListener("mousemove", function(event) { helpline('p') }, false);	 	 	 
	 
	 el6.addEventListener("click", function(event) { bbstyle(-1) }, false);
	 el6.addEventListener("mousemove", function(event) { helpline('c') }, false);	 	 	 

  }
  
};