// bbCode-Funktionen

var imageTag = false;

var theSelection = false;



var clientPC = navigator.userAgent.toLowerCase();

var clientVer = parseInt(navigator.appVersion);



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);



// Hilfe-Nachrichten

b_help = "Fetter text: [b]text[/b]  (alt+b)";

i_help = "Kursiver text: [i]text[/i]  (alt+i)";

u_help = "Unterstrichener text: [u]text[/u]  (alt+u)";

a_help = "Alle noch geöffneten Tags schließen";

r_help = "Abbrechen und zurück gehen (alt+r)";

s_help = "Abschicken (alt+s)";

p_help = "Vorschau in einem neuen Fenster öffnen (alt+p)";

m_help = "Übersicht der einsetzbaren Smilies öffnen (alt+m)";



// bbCode-Tags definieren

bbcode = new Array();

bbtags = new Array('[b]','[/b]','[i]','[/i]','[u]','[/u]');

imageTag = false;



function helpline(help) {

	document.getElementById("Helpbox").value = eval(help + "_help");

}



function getarraysize(thearray) {

	for (i = 0; i < thearray.length; i++) {

		if ((thearray[i] == "undefined") || (thearray[i] == "") || (thearray[i] == null))

			return i;

		}

	return thearray.length;

}



function arraypush(thearray,value) {

	thearray[ getarraysize(thearray) ] = value;

}



function arraypop(thearray) {

	thearraysize = getarraysize(thearray);

	retval = thearray[thearraysize - 1];

	delete thearray[thearraysize - 1];

	return retval;

}



function bbstyle(bbnumber) {

	var txtarea = document.getElementById("Entry");



	donotinsert = false;

	theSelection = false;

	bblast = 0;



	if (bbnumber == -1) { // Alle Tags schließen

		while (bbcode[0]) {

			butnumber = arraypop(bbcode) - 1;

			txtarea.value += bbtags[butnumber + 1];

			buttext = eval('document.getElementById("addbbcode"' + butnumber + '.value)');

			eval('document.getElementById("addbbcode"' + butnumber + '.value ="' + buttext.substr(0,(buttext.length - 1)) + '")');

		}

		imageTag = false;

		txtarea.focus();

		return;

	}



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

	{

		theSelection = document.selection.createRange().text; // Text-Auswahl des Benutzers

		if (theSelection) {

			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;

	}

	

	for (i = 0; i < bbcode.length; i++) {

		if (bbcode[i] == bbnumber+1) {

			bblast = i;

			donotinsert = true;

		}

	}



	if (donotinsert) {

		while (bbcode[bblast]) {

				butnumber = arraypop(bbcode) - 1;

				txtarea.value += bbtags[butnumber + 1];

				buttext = eval('document.getElementById("addbbcode' + butnumber + '.value")');

				eval('document.getElementById("addbbcode' + butnumber + '.value =\"' + buttext.substr(0,(buttext.length - 1)) + '\"")');

				imageTag = false;

			}

			txtarea.focus();

			return;

	} else { // Offene Tags

		if (imageTag && (bbnumber != 14)) {

			txtarea.value += bbtags[15];

			lastValue = arraypop(bbcode) - 1;

			document.all.addbbcode14.value = "Img";

			imageTag = false;

		}

		

		txtarea.value += bbtags[bbnumber];

		if ((bbnumber == 14) && (imageTag == false)) imageTag = 1;

		arraypush(bbcode,bbnumber+1);

		eval('document.getElementById("addbbcode'+bbnumber+'.value += "*"")');

		txtarea.focus();

		return;

	}

	storeCaret(txtarea);

}



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 storeCaret(textEl) {

	if (textEl.createTextRange) textEl.caretPos = document.selection.createRange().duplicate();

}