var imagbbclose = 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_win   = ((clientPC.indexOf("win")!=-1) || (clientPC.indexOf("16bit") != -1));
var is_mac    = (clientPC.indexOf("mac")!=-1);


var bbcode = new Array();
var bbcode2 = new Array();
var bbtags = new Array('[b]','[/b]','[i]','[/i]','[u]','[/u]','[img]','[/img]','[url]','[/url]');

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 checkForm() {
	if(document.post.message.value.length < 10) {
		alert("Du musst zu Deinem Beitrag einen Text eingeben.");
		return false;
	} else {
		bbstyle(-1);
		return true;
	}
}

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

function bbfontstyle(bbopen,bbclose,name) {

	var input = document.getElementById(name);
	input.focus();
  
	if(typeof document.selection != 'undefined') {
		var range = document.selection.createRange();
		var insText = range.text;
		range.text = bbopen + insText + bbclose;
		range = document.selection.createRange();
		if(insText.length == 0) {
			range.move('character', -bbclose.length);
		} else {
			range.moveStart('character', bbopen.length + insText.length + bbclose.length);      
		}
		range.select();
	} else if(typeof input.selectionStart != 'undefined') {
		var start = input.selectionStart;
		var end = input.selectionEnd;
		var insText = input.value.substring(start, end);
		input.value = input.value.substr(0, start) + bbopen + insText + bbclose + input.value.substr(end);
		var pos;
		if(insText.length == 0) {
			pos = start + bbopen.length;
		} else {
			pos = start + bbopen.length + insText.length + bbclose.length;
		}
		input.selectionStart = pos;
		input.selectionEnd = pos;
  	} else {
		var pos;
		var re = new RegExp('^[0-9]{0,3}$');
		while(!re.test(pos)) {
			pos = prompt("Einfuegen an Position (0.." + input.value.length + "):", "0");
		}
		if(pos > input.value.length) {
			pos = input.value.length;
		}
		var insText = prompt("Bitte geben Sie den zu formatierenden Text ein:");
		input.value = input.value.substr(0, pos) + bbopen + insText + bbclose + input.value.substr(pos);
	}

	// if ((clientVer >= 4) && is_ie && is_win) {
		// theSelection = document.selection.text;
		// if (!theSelection) {
			// document.post.message.value += bbopen + bbclose;
			// document.post.message.focus();
			// return;
		// }
		// document.selection.createRange().text = bbopen + theSelection + bbclose;
		// document.post.message.focus();
		// return;
	//  else {
		// document.post.message.value += bbopen + bbclose;
		// document.post.message.focus();
		// return;
	// }
	// storeCaret(document.post.message);
}

function bbfontstyle2(bbopen, bbclose) {
	if ((clientVer >= 4) && is_ie && is_win) {
		theSelection = document.selection.createRange().text;
		if (!theSelection) {
			document.post.message2.value += bbopen + bbclose;
			document.post.message2.focus();
			return;
		}
		document.selection.createRange().text = bbopen + theSelection + bbclose;
		document.post.message2.focus();
		return;
	} else {
		document.post.message2.value += bbopen + bbclose;
		document.post.message2.focus();
		return;
	}
	storeCaret(document.post.message2);
}


function bbstyle(bbnumber) {

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

	if (bbnumber == -1) {
		while (bbcode[0]) {
			butnumber = arraypop(bbcode) - 1;
			document.post.message.value += bbtags[butnumber + 1];
			buttext = eval('document.post.addbbcode' + butnumber + '.value');
			eval('document.post.addbbcode' + butnumber + '.value ="' + buttext.substr(0,(buttext.length - 1)) + '"');
		}
		imagbbclose = false;
		document.post.message.focus();
		return;
	}

	if ((clientVer >= 4) && is_ie && is_win)
		theSelection = document.selection.createRange().text;

	if (theSelection) {
		document.selection.createRange().text = bbtags[bbnumber] + theSelection + bbtags[bbnumber+1];
		document.post.message.focus();
		theSelection = '';
		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;
				document.post.message.value += bbtags[butnumber + 1];
				buttext = eval('document.post.addbbcode' + butnumber + '.value');
				eval('document.post.addbbcode' + butnumber + '.value ="' + buttext.substr(0,(buttext.length - 1)) + '"');
				imagbbclose = false;
			}
			document.post.message.focus();
			return;
	} else {

		if (imagbbclose && (bbnumber != 14)) {
			document.post.message.value += bbtags[15];
			lastValue = arraypop(bbcode) - 1;
			document.post.addbbcode14.value = "Img";
			imagbbclose = false;
		}

		document.post.message.value += bbtags[bbnumber];
		if ((bbnumber == 14) && (imagbbclose == false)) imagbbclose = 1;
		arraypush(bbcode,bbnumber+1);
		eval('document.post.addbbcode'+bbnumber+'.value += "*"');
		document.post.message.focus();
		return;
	}
	storeCaret(document.post.message);
}


function bbstyle2(bbnumber) {

	donotinsert = false;
	theSelection = false;
	bblast = 0;
	
	if ((clientVer >= 4) && is_ie && is_win)
		theSelection = document.selection.createRange().text;

	if (theSelection) {
		document.selection.createRange().text = bbtags[bbnumber] + theSelection + bbtags[bbnumber+1];
		document.post.message2.focus();
		theSelection = '';
		return;
	}

	for (i = 0; i < bbcode2.length; i++) {
		if (bbcode2[i] == bbnumber+1) {
			bblast = i;
			donotinsert = true;
		}
	}

	if (donotinsert) {
		while (bbcode2[bblast]) {
				butnumber = arraypop(bbcode2) - 1;
				document.post.message2.value += bbtags[butnumber + 1];
				buttext = eval('document.post.addbbcode' + butnumber + '.value');
				eval('document.post.addbbcode' + butnumber + '.value ="' + buttext.substr(0,(buttext.length - 1)) + '"');
				imagbbclose = false;
			}
			document.post.message.focus();
			return;
	} else {

		if (imagbbclose && (bbnumber != 14)) {
			document.post.message2.value += bbtags[15];
			lastValue = arraypop(bbcode) - 1;
			document.post.addbbcode14.value = "Img";
			imagbbclose = false;
		}

		document.post.message2.value += bbtags[bbnumber];
		if ((bbnumber == 14) && (imagbbclose == false)) imagbbclose = 1;
		arraypush(bbcode2,bbnumber+1);
		eval('document.post.addbbcode'+bbnumber+'.value += "*"');
		document.post.message2.focus();
		return;
	}
	storeCaret(document.post.message2);
}

function storeCaret(textEl) {
	if (textEl.createTextRange) textEl.caretPos = document.selection.createRange().duplicate();
}