// bbCode control by
// subBlue design
// www.subBlue.com

// 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
b_help = "Bold text: [b]text[/b]";
i_help = "Italic text: [i]text[/i]";
u_help = "Underline text: [u]text[/u]";
q_help = "Quote text: [quote]text[/quote]";
c_help = "Code display: [code]code[/code]";
l_help = "List: [ulist]text[/ulist] use [li] for additional items";
li_help = "Add a List item: [li]"
hr_help = "Add a horozontal line [hr][/hr]"
o_help = "Ordered list: [list=]text[/list]";
p_help = "Insert image: [img]http://image_url[/img]";
w_help = "Insert URL: [url]http://url[/url] or [url=http://url]URL text[/url]";
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]";
t_help = "Strike Through Text: [s]removed text[/s]";
sub_help = "Sub-script Text: [sub]subscript text[/sub]";
sup_help = "Super-script Text: [sup]superscript text[/sup]";
alignleft_help = "Align text: [align=left]left alight text [/align]";
aligncenter_help = "Align text: [align=center]Centre alight text [/align]";
alignright_help = "Align text: [align=right]right alight text [/align]";
alignjustify_help = "Align text: [align=justify]Justify alight text [/align]";


// Define the bbCode tags
bbcode = new Array();
bbtags = new Array('[b]','[/b]','[i]','[/i]','[u]','[/u]','[quote]','[/quote]','[code]','[/code]','[ulist]','[/ulist]','[list=]','[/list]','[img]','[/img]','[url=','[/url]', '[s]', '[/s]' , '[sub]', '[/sub]', '[sup]', '[/sup]', '[align=left]', '[/align]', '[align=center]', '[/align]', '[align=right]', '[/align]', '[align=justify]', '[/align]','[li]',' ','[hr]','[/hr]');                                                 
imageTag = false;

// Shows the help messages 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 bbfontstyle(bbopen, bbclose) {
	var txtarea = document.post.paragraph;

	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.paragraph;

	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) {
			if (bbnumber == 16){ // this is the image url thing
				win2 = window.open("download_manager.php", "Download Files", "width=700,height=700,scrollbars=yes");		
				var fullurl=prompt("Please enter the full url","http://");
				document.selection.createRange().text = bbtags[bbnumber] + fullurl + ']' + theSelection + bbtags[bbnumber+1];
			}
			else{
				// Add tags around selection
                win2 = window.open("download_manager.php", "Download Files", "width=700,height=700,scrollbars=yes");
				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);
	if (bbtags[16]== open){
		win2 = window.open("download_manager.php" , "Download Files", "width=700,height=700,scrollbars=yes");		
		var fullurl=prompt("Please enter the full url","http://");
		txtarea.value = s1 + open + fullurl + ']' + s2 + close + s3;
	}else{
		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();
}


//used on the contacts list 
function toggleRows(tableId,whatToDo){
	var hide = whatToDo;
	tbl = document.getElementById(tableId);
	var len = tbl.rows.length;
	var doneOne = false;
	if (len > 2){
		var vStyle = (hide)? "none":"";
		for(i=2 ; i< len; i++){
			doneOne = true;
			tbl.rows[i].style.display = vStyle;
		}
	}
	//else{
	//	document.getElementById(tag).innerHTML = "";
	//}
}




//taken from http://www.webmaster-talk.com/javascript-forum/44203-file-extension-check.html

function LimitAttach(form, file) {
	extArray = new Array(".doc", ".DOC", ".odt", ".ODT", ".zip", ".ZIP", "docx", "DOCX");
	allowSubmit = false;
	if (!file) return;
	while (file.indexOf("\\") != -1)
	file = file.slice(file.indexOf("\\") + 1);
	ext = file.slice(file.indexOf(".")).toLowerCase();
	for (var i = 0; i < extArray.length; i++) {
	if (extArray[i] == ext) { allowSubmit = true; break; }
	}
	if (allowSubmit) return true;
	else
	alert("Please only upload files that end in types:  "
	+ (extArray.join("  ")) + "\nPlease select a new "
	+ "file to upload and submit again.");
	return false;
}