// JS QuickTags version 1.2
//
// Copyright (c) 2002-2005 Alex King
// http://www.alexking.org/
//
// Licensed under the LGPL license
// http://www.gnu.org/copyleft/lesser.html
//
// **********************************************************************
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// **********************************************************************
//
// This JavaScript will insert the tags below at the cursor position in IE and
// Gecko-based browsers (Mozilla, Camino, Firefox, Netscape). For browsers that
// do not support inserting at the cursor position (Safari, OmniWeb) it appends
// the tags to the end of the content.
//
// The variable 'edCanvas' must be defined as the <textarea> element you want
// to be editing in. See the accompanying 'index.html' page for an example.

var edButtons = new Array();
var edLinks = new Array();
var edOpenTags = new Array();

var gfxSmilies = new Array();

function edButton(id, display, tagStart, tagEnd, access, open) {
	this.id = id;				// used to name the toolbar button
	this.display = display;		// label on button
	this.tagStart = tagStart; 	// open tag
	this.tagEnd = tagEnd;		// close tag
	this.access = access;			// set to -1 if tag does not need to be closed
	this.open = open;			// set to -1 if tag does not need to be closed
}

function gfxSmilie(id,display,emote){
	this.id = id;
	this.display = display;
	this.emote = emote;
}

edButtons.push(
new edButton(
'ed_bold'
,'Bold'
,'[b]'
,'[/b]'
,'b'
)
);

edButtons.push(
new edButton(
'ed_italic'
,'Italic'
,'[i]'
,'[/i]'
,'i'
)
);

edButtons.push(
new edButton(
'bb_underline'
,'Underline'
,'[u]'
,'[/u]'
,'i'
)
);

edButtons.push(
new edButton(
'ed_link'
,'Link'
,''
,''
,'a'
)
); // special case


edButtons.push(
new edButton(
'ed_img'
,'Image'
,''
,''
,'m'
,-1
)
); // special case
var extendedStart = edButtons.length;


gfxSmilies.push(new gfxSmilie('smilie','icon_smile.gif',':)'));
gfxSmilies.push(new gfxSmilie('smilie','icon_sad.gif',':('));
gfxSmilies.push(new gfxSmilie('smilie','icon_biggrin.gif',':D'));
gfxSmilies.push(new gfxSmilie('smilie','icon_surprised.gif',':o'));
gfxSmilies.push(new gfxSmilie('smilie','icon_wink.gif',';)'));


function edLink(display, URL, newWin) {
	this.display = display;
	this.URL = URL;
	if (!newWin) {
		newWin = 0;
	}
	this.newWin = newWin;
}


edLinks[edLinks.length] = new edLink('alexking.org'
,'http://www.alexking.org/'
);

function showSmilie(smilie,i){
	document.write('<a href="javascript:emoticon(\''+smilie.emote+'\');"><img src="/images/smilies/'+smilie.display+'" border="0" /></a>');
}
function edShowButton(button, i) {
	if (button.access) {
		var accesskey = ' accesskey = "' + button.access + '"'
	}
	else {
		var accesskey = '';
	}
	switch (button.id) {
		case 'ed_img':
		document.write('<input type="button" id="' + button.id + '" ' + accesskey + ' class="ed_button" onclick="edInsertImage(edCanvas);" value="' + button.display + '" />');
		break;
		case 'ed_link':
		document.write('<input type="button" id="' + button.id + '" ' + accesskey + ' class="ed_button" onclick="edInsertLink(edCanvas, ' + i + ');" value="' + button.display + '" />');
		break;
		case 'ed_ext_link':
		document.write('<input type="button" id="' + button.id + '" ' + accesskey + ' class="ed_button" onclick="edInsertExtLink(edCanvas, ' + i + ');" value="' + button.display + '" />');
		break;
		case 'ed_footnote':
		document.write('<input type="button" id="' + button.id + '" ' + accesskey + ' class="ed_button" onclick="edInsertFootnote(edCanvas);" value="' + button.display + '" />');
		break;
		default:
		document.write('<input type="button" id="' + button.id + '" ' + accesskey + ' class="ed_button" onclick="edInsertTag(edCanvas, ' + i + ');" value="' + button.display + '"  />');
		break;
	}
}

function edShowLinks() {
	var tempStr = '<select onchange="edQuickLink(this.options[this.selectedIndex].value, this);"><option value="-1" selected>(Quick Links)</option>';
	for (i = 0; i < edLinks.length; i++) {
		tempStr += '<option value="' + i + '">' + edLinks[i].display + '</option>';
	}
	tempStr += '</select>';
	document.write(tempStr);
}

function edAddTag(button) {
	if (edButtons[button].tagEnd != '') {
		edOpenTags[edOpenTags.length] = button;
		document.getElementById(edButtons[button].id).value = '/' + document.getElementById(edButtons[button].id).value;
	}
}

function edRemoveTag(button) {
	for (i = 0; i < edOpenTags.length; i++) {
		if (edOpenTags[i] == button) {
			edOpenTags.splice(i, 1);
			document.getElementById(edButtons[button].id).value = 		document.getElementById(edButtons[button].id).value.replace('/', '');
		}
	}
}

function edCheckOpenTags(button) {
	var tag = 0;
	for (i = 0; i < edOpenTags.length; i++) {
		if (edOpenTags[i] == button) {
			tag++;
		}
	}
	if (tag > 0) {
		return true; // tag found
	}
	else {
		return false; // tag not found
	}
}

function edCloseAllTags() {
	var count = edOpenTags.length;
	for (o = 0; o < count; o++) {
		edInsertTag(edCanvas, edOpenTags[edOpenTags.length - 1]);
	}
}

function edQuickLink(i, thisSelect) {
	if (i > -1) {
		var newWin = '';
		if (edLinks[i].newWin == 1) {
			newWin = ' target="_blank"';
		}
		var tempStr = '<a href="' + edLinks[i].URL + '"' + newWin + '>'
		+ edLinks[i].display
		+ '</a>';
		thisSelect.selectedIndex = 0;
		edInsertContent(edCanvas, tempStr);
	}
	else {
		thisSelect.selectedIndex = 0;
	}
}

function smilieBar() {
	for (i = 0; i < 10; i++) {
		showSmilie(gfxSmilies[i],i);
	}
}

function edToolbar() {
	document.write('<div id="ed_toolbar"><span>');
	for (i = 0; i < extendedStart; i++) {
		edShowButton(edButtons[i], i);
	}
	document.write(
	'<input type="button" id="ed_close" class="ed_button" onclick="edCloseAllTags();" value="Close Tags" />'
	+ '</span><br />'
	);

	for (i = extendedStart; i < edButtons.length; i++) {
		edShowButton(edButtons[i], i);
	}

	document.write('</span>');
	//edShowLinks();
	document.write('</div>');
}

// insertion code

function edInsertTag(myField, i) {
	//IE support
	if (document.selection) {
		myField.focus();
		sel = document.selection.createRange();
		if (sel.text.length > 0) {
			sel.text = edButtons[i].tagStart + sel.text + edButtons[i].tagEnd;
		}
		else {
			if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
				sel.text = edButtons[i].tagStart;
				edAddTag(i);
			}
			else {
				sel.text = edButtons[i].tagEnd;
				edRemoveTag(i);
			}
		}
		myField.focus();
	}
	//MOZILLA/NETSCAPE support
	else if (myField.selectionStart || myField.selectionStart == '0') {
		var startPos = myField.selectionStart;
		var endPos = myField.selectionEnd;
		var cursorPos = endPos;
		var scrollTop = myField.scrollTop;
		if (startPos != endPos) {
			myField.value = myField.value.substring(0, startPos)
			+ edButtons[i].tagStart
			+ myField.value.substring(startPos, endPos)
			+ edButtons[i].tagEnd
			+ myField.value.substring(endPos, myField.value.length);
			cursorPos += edButtons[i].tagStart.length + edButtons[i].tagEnd.length;
		}
		else {
			if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
				myField.value = myField.value.substring(0, startPos)
				+ edButtons[i].tagStart
				+ myField.value.substring(endPos, myField.value.length);
				edAddTag(i);
				cursorPos = startPos + edButtons[i].tagStart.length;
			}
			else {
				myField.value = myField.value.substring(0, startPos)
				+ edButtons[i].tagEnd
				+ myField.value.substring(endPos, myField.value.length);
				edRemoveTag(i);
				cursorPos = startPos + edButtons[i].tagEnd.length;
			}
		}
		myField.focus();
		myField.selectionStart = cursorPos;
		myField.selectionEnd = cursorPos;
		myField.scrollTop = scrollTop;
	}
	else {
		if (!edCheckOpenTags(i) || edButtons[i].tagEnd == '') {
			myField.value += edButtons[i].tagStart;
			edAddTag(i);
		}
		else {
			myField.value += edButtons[i].tagEnd;
			edRemoveTag(i);
		}
		myField.focus();
	}
}

function edInsertContent(myField, myValue) {
	//IE support
	if (document.selection) {
		myField.focus();
		sel = document.selection.createRange();
		sel.text = myValue;
		myField.focus();
	}
	//MOZILLA/NETSCAPE support
	else if (myField.selectionStart || myField.selectionStart == '0') {
		var startPos = myField.selectionStart;
		var endPos = myField.selectionEnd;
		var scrollTop = myField.scrollTop;
		myField.value = myField.value.substring(0, startPos)
		+ myValue
		+ myField.value.substring(endPos, myField.value.length);
		myField.focus();
		myField.selectionStart = startPos + myValue.length;
		myField.selectionEnd = startPos + myValue.length;
		myField.scrollTop = scrollTop;
	} else {
		myField.value += myValue;
		myField.focus();
	}
}

function edInsertLink(myField, i, defaultValue) {
	if (!defaultValue) {
		defaultValue = 'http://';
	}
	if (!edCheckOpenTags(i)) {
		var URL = prompt('Enter the URL' ,defaultValue);
		var NAME = prompt('Enter Link name','');
		if (URL) {
			edButtons[i].tagStart = '[link='+ URL + ']' + NAME + '[/link]';
			edInsertTag(myField, i);
		}
	}
	else {
		edInsertTag(myField, i);
	}
}

function edInsertImage(myField) {
	var myValue = prompt('Enter the URL of the image', 'http://');
	if (myValue) {
		myValue = '[img]'
		+ myValue
		+ '[/img]';
		edInsertContent(myField, myValue);
	}
}

function emoticon(emote) {
	var myField = edCanvas;
	edInsertContent(myField, emote);
}

function countInstances(string, substr) {
	var count = string.split(substr);
	return count.length - 1;
}