// JS QuickTags version 1.1
//
// Copyright (c) 2002-2004 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.
//
// Modified by drewmedia 12/16/04

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

function edButton(id, display, tagStart, tagEnd, 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.open = open;			// set to -1 if tag does not need to be closed
}

edButtons[edButtons.length] = new edButton('ed_bold'
                                          ,'BOLD'
                                          ,'[b]'
                                          ,'[/b]'
                                          );

edButtons[edButtons.length] = new edButton('ed_italic'
                                          ,'ITALICS'
                                          ,'[i]'
                                          ,'[/i]'
                                          );

edButtons[edButtons.length] = new edButton('ed_under'
                                          ,'UNDERLINE'
                                          ,'[u]'
                                          ,'[/u]'
                                          );
edButtons[edButtons.length] = new edButton('ed_link'
                                          ,'LINK'
                                          ,'[url]'
                                          ,'[/url]'
                                          );
edButtons[edButtons.length] = new edButton('ed_email'
                                          ,'EMAIL'
                                          ,'[email]'
                                          ,'[/email]'
                                          );


function edShowButton(button, i) {
	if (button.id == 'ed_img') {
		document.write('<input type="button" id="' + button.id + '" class="button" onclick="edInsertImage(edCanvas);" value="' + button.display + '" />');
	}
	else if (button.id == 'ed_link') {
		document.write('<input type="button" id="' + button.id + '" class="button" onclick="edInsertLink(edCanvas, ' + i + ');" value="' + button.display + '" />');
	}
	else if (button.id == 'ed_email') {
		document.write('<input type="button" id="' + button.id + '" class="button" onclick="edInsertEmail(edCanvas, ' + i + ');" value="' + button.display + '" />');
	}
	else if (button.id == 'ed_align') {
		document.write('<input type="button" id="' + button.id + '" class="button" onclick="edInsertAlign(edCanvas, ' + i + ');" value="' + button.display + '" />');
	}
	else {
		document.write('<input type="button" id="' + button.id + '" class="button" onclick="edInsertTag(edCanvas, ' + i + ');" value="' + button.display + '" />');
	}
}

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 edSpell(myField) {
	var word = '';
	if (document.selection) {
		myField.focus();
	    var sel = document.selection.createRange();
		if (sel.text.length > 0) {
			word = sel.text;
		}
	}
	else if (myField.selectionStart || myField.selectionStart == '0') {
		var startPos = myField.selectionStart;
		var endPos = myField.selectionEnd;
		if (startPos != endPos) {
			word = myField.value.substring(startPos, endPos);
		}
	}
	if (word == '') {
		word = prompt('Enter a word to look up:', '');
	}
	if (word != '') {
		window.open('http://dictionary.reference.com/search?q=' + escape(word));
	}
}

function edToolbar() {
	document.write('<div id="ed_toolbar">');
	for (i = 0; i < edButtons.length; i++) {
		edShowButton(edButtons[i], i);
		document.write(' ');
	}
	//document.write('<input type="button" id="ed_close" class="button" onclick="edCloseAllTags();" value="Close Tags" />');
	//document.write('<input type="button" id="ed_spell" class="button" onclick="edSpell(edCanvas);" value="Dict" />');
//	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;
		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;
	} else {
		myField.value += myValue;
		myField.focus();
	}
}

function edInsertLink(myField, i, defaultValue) {
	if (!defaultValue) {
		defaultValue = 'http://';
	}
	
	var tpos = js_getCursorPosition(myField);
	
	startPos = tpos.start;
	endPos = tpos.end;
	
	var diff = endPos - startPos;
	
	txt = myField.value.substr(startPos, diff);
	
	var txtValue = '';
	
	if(txt.indexOf('http') != -1 || txt.indexOf('.com') != -1 || txt.indexOf('.org') != -1 || txt.indexOf('.net') != -1) {
		defaultValue = txt;
	} else {
		txtValue = txt;
	}
	
	if (!edCheckOpenTags(i)) {

		var URL = prompt('Enter the URL' ,defaultValue);
		var TEXT = prompt('Enter a description for this URL', txtValue);
		if (URL) {

			if(TEXT) {
				var n = '[url="' + URL + '"]' + TEXT + '[/url]';
				edInsertContent(myField, n);
			}else{
				var n = '[url]' + URL + '[/url]';
				edInsertContent(myField, n);
			}
		}
	}
	else {
		edInsertTag(myField, i);
	}
}

function edInsertEmail(myField, i, defaultValue) {
	if (!defaultValue) {
		defaultValue = '';
	}

	var txtValue = '';

	if (!edCheckOpenTags(i)) {

		var URL = prompt('Enter the Email Address' ,defaultValue);
		var TEXT = prompt('Enter the text to display', txtValue);
		if (URL) {

			if(TEXT) {
				var n = '[email="' + URL + '"]' + TEXT + '[/email]';
				edInsertContent(myField, n);
			}else{
				var n = '[email]' + URL + '[/email]';
				edInsertContent(myField, n);
			}
		}
	}
	else {
		edInsertTag(myField, i);
	}
}

function edInsertImage(myField) {
	var myValue = prompt('Enter the URL of the image', 'http://');
	if (myValue) {
		myValue = '<img src="'
				+ myValue
				+ '" alt="' + prompt('Enter a description of the image', '')
				+ '" />';
		edInsertContent(myField, myValue);
	}
}

function edInsertAlign(myField, i, defaultValue) {
	if (!defaultValue) {
		defaultValue = 'center';
	}
	if (!edCheckOpenTags(i)) {
		var URL = prompt('Enter the alignment. Options are: left, center, or right.' ,defaultValue);
		if (URL) {
			edButtons[i].tagStart = '<p align="' + URL + '">';
			edInsertTag(myField, i);
		}
	}
	else {
		edInsertTag(myField, i);
	}
}

function js_CursorPos(start, end) {
    this.start = start;
    this.end = end;
}

function js_getCursorPosition(textArea) {
    var start = 0;
    var end = 0;
    if (document.selection) { // IE
        textArea.focus();
        var sel1 = document.selection.createRange();
        var sel2 = sel1.duplicate();
        sel2.moveToElementText(textArea);
        var selText = sel1.text;
        sel1.text = String.fromCharCode(28);
        var index = sel2.text.indexOf(String.fromCharCode(28));
        start = js_countTextAreaChars((index == -1) ? sel2.text : sel2.text.substring(0, index));
        end = js_countTextAreaChars(selText) + start;
        sel1.moveStart('character', -1);
        sel1.text = selText;
    } else if (textArea.selectionStart || (textArea.selectionStart == "0")) { // Mozilla/Netscape
        start = textArea.selectionStart;
        end = textArea.selectionEnd;
    }
    return new js_CursorPos(start, end);
}

function js_countTextAreaChars(text) {
    var n = 0;
    for (var i = 0; i < text.length; i++) {
        if (text.charAt(i) != '\r') {
            n++;
        }
    }
    return n;
}