function tag(tagadd, tagclose, name) {

        var post = window.document.editform.msg.value;

        window.document.editform.msg.value = post + tagadd + tagclose;

        window.document.editform.msg.focus();

}





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 msgs

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

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

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

q_help = "Quote text: [quote]text[/quote]  (alt+q)";

c_help = "Code display: [code]code[/code]  (alt+c)";

l_help = "List: [list]text[/list] (alt+l)";

o_help = "Ordered list: [list=]text[/list]  (alt+o)";

p_help = "Insert image: [img]http://image_url[/img]  (alt+p)";

w_help = "Insert URL: [url]http://url[/url] or [url=http://url]URL text[/url]  (alt+w)";

a_help = "Close all open bbCode tags";

s_help = "Font color: [color=red]text[/color]  Tip: you can also use color=#FF0000";

f_help = "Font size: [size=x-small]small text[/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]');

imageTag = false;



// Shows the help msgs in the helpline window

function helpline(help) {

	document.post.helpbox.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;

}





function checkForm() {



	formErrors = false;



	if (document.post.msg.value.length < 2) {

		formErrors = "You must enter a msg when posting.";

	}



	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.post.msg;

	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.post.msg;



	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

	{

		txtarea.value += bbopen + bbclose;

		txtarea.focus();

	}

	storeCaret(txtarea);

}





function bbstyle(bbnumber) {

	var txtarea = document.post.msg;



	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;

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

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

			eval('document.post.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;

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

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

				eval('document.post.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

			document.post.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.post.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;

}



// 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();

}