// Get: commentDiv tag-id, authorName string, commentForm tag-id
// Insert qouted text from commentDiv into commentForm

function appendQuote(commentDiv, authorName, commentForm) {
	var _result = "";
	var node = document.getElementById(commentDiv);
	if (node == null) {
		return _result;
	}
	var childrens = node.childNodes;
	var i = 0;
	while (i < childrens.length) {
		var child = childrens.item(i);
		if (child.nodeType == 1 && child.tagName == 'P') {
			var childText = getElemText(child);
			if (childText) {
				if (_result) {
					_result += "\n\n";
				}
				_result += childText;
			}
		}
		i++;
	}
	var node = document.getElementById(commentForm);
	var value = node.value;
	if (value != '') {
		value += "\n";
	}
	node.value = value+"[QUOTE=\""+authorName+"\"]"+_result+"[/QUOTE]\n";
	try {
		node.scrollIntoView(false);
		node.focus();
		return false;
	} catch (e) {
	}
	node.focus();
	return true;
}

// From: http://htmlcoder.visions.ru/JavaScript/?31
// Author: alshur
// Get: DOM node
// Return: plain text in node

function getElemText(node){
	return node.text || node.textContent || (function(node){
		var _result = "";
		if (node == null) {
			return _result;
		}
		var childrens = node.childNodes;
		var i = 0;
		while (i < childrens.length) {
			var child = childrens.item(i);
			switch (child.nodeType) {
				case 1: // ELEMENT_NODE
					if (child.nodeName == 'BR') {
						_result += "\n";
					} else {
						_result += arguments.callee(child);
					}
					break;
				case 5: // ENTITY_REFERENCE_NODE
					_result += trim(arguments.callee(child));
					break;
				case 3: // TEXT_NODE
				case 2: // ATTRIBUTE_NODE
				case 4: // CDATA_SECTION_NODE
					_result += child.nodeValue;
					break;
			}
			i++;
		}
		return trim(_result);
	}(node));
}

// From: http://www.somacon.com/p355.php "Javascript Trim LTrim and RTrim Functions"

function trim(str) {
	try {
		str = str.replace(/^\\s+|\\s+$/g,'');
	} catch(e) {
		for(var k = 0; k < str.length && isWhitespace(str.charAt(k)); k++);
		str = str.substring(k, str.length);
		for(var j=str.length-1; j>=0 && isWhitespace(str.charAt(j)); j--);
		str = str.substring(0,j+1);
	}
	return str;
}

function insertTag(tag, commentForm) {
	var node = document.getElementById(commentForm);
	node.focus();
	if (document.selection) {
      	SelectedText = node.document.selection.createRange();
        if (tag=="CUT") {
         SelectedText.text = SelectedText.text+'['+tag+']';
        } else {
	 	 SelectedText.text = '['+tag+']'+SelectedText.text+'[/'+tag+']';
        }
	} else if (typeof(node.selectionStart)=="number") {
		// thx: http://www.tigir.com/javascript.htm
       	 var start = node.selectionStart;
	 	 var end = node.selectionEnd;
         if (tag=="CUT") {
          var rs = node.value.substr(start,end-start)+'['+tag+']';
         } else {
 		  var rs = '['+tag+']'+node.value.substr(start,end-start)+'[/'+tag+']';
         }
		 node.value = node.value.substr(0,start)+rs+node.value.substr(end);
		 var newpos = start + rs.length;
		 node.setSelectionRange(newpos,newpos);
	} else {
        if (tag!="CUT") {
		node.value += '['+tag+'][/'+tag+']';
     }
	}
	return false;
}