// when inserting into a textnode
      // we create 2 new textnodes
      // and put the insertNode in between

      var textNode = container;
      container = textNode.parentNode;
      var text = textNode.nodeValue;

      // text before the split
      var textBefore = text.substr(0,pos);
      // text after the split
      var textAfter = text.substr(pos);

      var beforeNode = document.createTextNode(textBefore);
      afterNode = document.createTextNode(textAfter);

      // insert the 3 new nodes before the old one
      container.insertBefore(afterNode, textNode);
      container.insertBefore(insertNode, afterNode);
      container.insertBefore(beforeNode, insertNode);

      // remove the old node
      container.removeChild(textNode);
    } 
	
	  else {
      // else simply insert the node
      afterNode = container.childNodes[pos];
      container.insertBefore(insertNode, afterNode);
    }

    range.setEnd(afterNode, 0);
    range.setStart(afterNode, 0);
  }

  sel.addRange(range);
};

	

/* ---------------------------------------------------------------------- *\
  Function    : _dec_to_rgb
  Description : convert a decimal color value to rgb hexadecimal
  Usage       : var hex = _dec_to_rgb('65535');   // returns FFFF00
  Arguments   : value   - dec value
\* ---------------------------------------------------------------------- */

function _dec_to_rgb(value) {
  var hex_string = "";
  for (var hexpair = 0; hexpair < 3; hexpair++) {
    var myByte = value & 0xFF;            // get low byte
    value >>= 8;                          // drop low byte
    var nybble2 = myByte & 0x0F;          // get low nybble (4 bits)
    var nybble1 = (myByte >> 4) & 0x0F;   // get high nybble
    hex_string += nybble1.toString(16);   // convert nybble to hex
    hex_string += nybble2.toString(16);   // convert nybble to hex
  }
  return hex_string.toUpperCase();
};



/* ---------------------------------------------------------------------- *\
  Function    : outputFontSelect()
  Description : creates the Font Select drop down and inserts it into 
	              the toolbar
  Usage       : outputFontSelect(n)
  Arguments   : n   - The editor identifier that the Font Select will update
	                    when making font changes (the textarea's ID)
\* ---------------------------------------------------------------------- */
function outputFontSelect(n) {

  var FontSelectObj        = ToolbarList['selectfont'];
  var FontSelect           = FontSelectObj[2];
  var FontSelectOn         = FontSelectObj[3];
  
	Fonts.sort();
	var FontSelectDropDown = new Array;
	FontSelectDropDown[n] = '<table border="0" cellpadding="0" cellspacing="0"><tr><td onMouseOver="document.getElementById(\'selectFont' + n + '\').src=\'' + FontSelectOn + '\';" onMouseOut="document.getElementById(\'selectFont' + n + '\').src=\'' + FontSelect + '\';"><img src="' + FontSelect + '" id="selectFont' + n + '" width="85" height="20" onClick="showFonts(\'' + n + '\');" unselectable="on"><br>';
	FontSelectDropDown[n] += '<span id="Fonts' + n + '" class="dropdown" style="width: 145px;">';

	for (var i = 0; i <= Fonts.length;) {
	  if (Fonts[i]) {
      FontSelectDropDown[n] += '<button type="button" onClick="formatText(\'FontName\',\'' + n + '\',\'' + Fonts[i] + '\')\; hideFonts(\'' + n + '\');" onMouseOver="this.className=\'mouseOver\'" onMouseOut="this.className=\'mouseOut\'" class="mouseOut" style="width: 120px;"><table cellpadding="0" cellspacing="0" border="0"><tr><td align="left" style="font-family:' + Fonts[i] + '; font-size: 12px;">' + Fonts[i] + '</td></tr></table></button><br>';	
    }	  
	  i++;
  }
	FontSelectDropDown[n] += '</span></td></tr></table>';
	document.getElementById('FontSelect' + n).insertAdjacentHTML("afterBegin", FontSelectDropDown[n]);
};



/* ---------------------------------------------------------------------- *\
  Function    : outputFontSizes()
  Description : creates the Font Sizes drop down and inserts it into 
	              the toolbar
  Usage       : outputFontSelect(n)
  Arguments   : n   - The editor identifier that the Font Sizes will update
	                    when making font changes (the textarea's ID)
\* ---------------------------------------------------------------------- */
function outputFontSizes(n) {

  var FontSizeObj        = ToolbarList['selectsize'];
  var FontSize           = FontSizeObj[2];
  var FontSizeOn         = FontSizeObj[3];

	FontSizes.sort();
	var FontSizesDropDown = new Array;
	FontSizesDropDown[n] = '<table border="0" cellpadding="0" cellspacing="0"><tr><td onMouseOver="document.getElementById(\'selectSize' + n + '\').src=\'' + FontSizeOn + '\';" onMouseOut="document.getElementById(\'selectSize' + n + '\').src=\'' + FontSize + '\';"><img src="' + FontSize + '" id="selectSize' + n + '" width="49" height="20" onClick="showFontSizes(\'' + n + '\');" unselectable="on"><br>';
  FontSizesDropDown[n] += '<span id="Sizes' + n + '" class="dropdown" style="width: 170px;">';

	for (var i = 0; i <= FontSizes.length;) {
	  if (FontSizes[i]) {
      FontSizesDropDown[n] += '<button type="button" onClick="formatText(\'FontSize\',\'' + n + '\',\'' + FontSizes[i] + '\')\;hideFontSizes(\'' + n + '\');" onMouseOver="this.className=\'mouseOver\'" onMouseOut="this.className=\'mouseOut\'" class="mouseOut" style="width: 145px;"><table cellpadding="0" cellspacing="0" border="0"><tr><td align="left" style="font-family: arial, verdana, helvetica;"><font size="' + FontSizes[i] + '">' + FontSizes[i] + ' 號</font></td></tr></table></button><br>';	
    }
	  i++;
  }
	FontSizesDropDown[n] += '</span></td></tr></table>';
	document.getElementById('FontSizes' + n).insertAdjacentHTML("afterBegin", FontSizesDropDown[n]);
};



/* ---------------------------------------------------------------------- *\
  Function    : hideFonts()
  Description : Hides the list of font names in the font select drop down
  Usage       : hideFonts(n)
  Arguments   : n   - The editor identifier (the textarea's ID)
\* ---------------------------------------------------------------------- */
function hideFonts(n) {
  document.getElementById('Fonts' + n).style.display = 'none'; 
};



/* ---------------------------------------------------------------------- *\
  Function    : hideFontSizes()
  Description : Hides the list of font sizes in the font sizes drop down
  Usage       : hideFontSizes(n)
  Arguments   : n   - The editor identifier (the textarea's ID)
\* ---------------------------------------------------------------------- */
function hideFontSizes(n) {
  document.getElementById('Sizes' + n).style.display = 'none'; 
};



/* ---------------------------------------------------------------------- *\
  Function    : showFonts()
  Description : Shows the list of font names in the font select drop down
  Usage       : showFonts(n)
  Arguments   : n   - The editor identifier (the textarea's ID)
\* ---------------------------------------------------------------------- */
function showFonts(n) { 
  if (document.getElementById('Fonts' + n).style.display == 'block') {
    document.getElementById('Fonts' + n).style.display = 'none';
	}
  else {
    document.getElementById('Fonts' + n).style.display = 'block'; 
    document.getElementById('Fonts' + n).style.position = 'absolute';		
  }
};



/* ---------------------------------------------------------------------- *\
  Function    : showFontSizes()
  Description : Shows the list of font sizes in the font sizes drop down
  Usage       : showFonts(n)
  Arguments   : n   - The editor identifier (the textarea's ID)
\* ---------------------------------------------------------------------- */
function showFontSizes(n) { 
  if (document.getElementById('Sizes' + n).style.display == 'block') {
    document.getElementById('Sizes' + n).style.display = 'none';
	}
  else {
    document.getElementById('Sizes' + n).style.display = 'block'; 
    document.getElementById('Sizes' + n).style.position = 'absolute';		
  }
};



/* ---------------------------------------------------------------------- *\
  Function    : viewSource()
  Description : Shows the HTML source code generated by the WYSIWYG editor
  Usage       : showFonts(n)
  Arguments   : n   - The editor identifier (the textarea's ID)
\* ---------------------------------------------------------------------- */
function viewSource(n) {
  var getDocument = document.getElementById("wysiwyg" + n).contentWindow.document;
  var browserName = navigator.appName;
	
	// View Source for IE 	 
  if (browserName == "Microsoft Internet Explorer") {
    var iHTML = getDocument.body.innerHTML;
    getDocument.body.innerText = iHTML;
	}
 
  // View Source for Mozilla/Netscape
  else {
    var html = document.createTextNode(getDocument.body.innerHTML);
    getDocument.body.innerHTML = "";
    getDocument.body.appendChild(html);
	}
  
	// Hide the HTML Mode button and show the Text Mode button
  document.getElementById('HTMLMode' + n).style.display = 'none'; 
	document.getElementById('textMode' + n).style.display = 'block';
	
	// set the font values for displaying HTML source
	getDocument.body.style.fontSize = "12px";
	getDocument.body.style.fontFamily = "Courier New"; 
	
  viewTextMode = 1;
};



/* ---------------------------------------------------------------------- *\
  Function    : viewSource()
  Description : Shows the HTML source code generated by the WYSIWYG editor
  Usage       : showFonts(n)
  Arguments   : n   - The editor identifier (the textarea's ID)
\* ---------------------------------------------------------------------- */
function viewText(n) { 
  var getDocument = document.getElementById("wysiwyg" + n).contentWindow.document;
  var browserName = navigator.appName;
	
	// View Text for IE 	  	 
  if (browserName == "Microsoft Internet Explorer") {
    var iText = getDocument.body.innerText;
    getDocument.body.innerHTML = iText;
	}
  
	// View Text for Mozilla/Netscape
  else {
    var html = getDocument.body.ownerDocument.createRange();
    html.selectNodeContents(getDocument.body);
    getDocument.body.innerHTML = html.toString();
	}
  
	// Hide the Text Mode button and show the HTML Mode button
  document.getElementById('textMode' + n).style.display = 'none'; 
	document.getElementById('HTMLMode' + n).style.display = 'block';
	
	// reset the font values
  getDocument.body.style.fontSize = "";
	getDocument.body.style.fontFamily = ""; 
	viewTextMode = 0;
};



/* ---------------------------------------------------------------------- *\
  Function    : updateTextArea()
  Description : Updates the text area value with the HTML source of the WYSIWYG
  Usage       : updateTextArea(n)
  Arguments   : n   - The editor identifier (the textarea's ID)
\* ---------------------------------------------------------------------- */
function updateTextArea(n) {
  document.getElementById(n).value = document.getElementById("wysiwyg" + n).contentWindow.document.body.innerHTML;
};