//quote selected
function quoteSelected(){
	var quoted = "";
	
	if (window.getSelection) quoted = window.getSelection();
	else if (document.getSelection)	quoted = document.getSelection();
	else if (document.selection) qquoted = document.selection.createRange().text;
	else quoted = "The Auto Quote Could Not Find Selection";
	
	document.forms[0].message.value += "<blockquote>\r"+quoted+"\r</blockquote>\r";
}


// 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);

//add preformated tags to the input
function insertTag(tag){
	var txtarea = document.forms[0].message;
	var openTag = "";
	var closeTag = "";
	
	switch(tag){
		case "b":
			openTag = "<b>";
			closeTag = "</b>";
			break;
		case "i":
			openTag = "<i>";
			closeTag = "</i>";
			break;
		case "u":
			openTag = "<u>";
			closeTag = "</u>";
			break;
		case "strike":
			openTag = "<strike>";
			closeTag = "</strike>";
			break;
		case "blockquote":
			openTag = "\r<blockquote>";
			closeTag = "</blockquote>\r";
			break;
		case "a":
			openTag = "<a href=\"link_address\" title=\"short title\" target=\"_blank\">";
			closeTag = "</a>";
			break;
		case "img":
			openTag = "<img src=\"address_to_image\" alt=\"short description\" />";
			closeTag = "";
			break;
		case "ol":
			openTag = "\r<ol>\r<li>";
			closeTag = "</li>\r</ol>\r";
			break;
		case "ul":
			openTag = "\r<ul>\r<li>";
			closeTag = "</li>\r</ul>\r";
			break;
		case "li":
			openTag = "<li>";
			closeTag = "</li>";
			break;
	}
	
	if ((clientVer >= 4) && is_ie && is_win) {
		theSelection = document.selection.createRange().text;
		if (!theSelection) {
			txtarea.value += openTag + closeTag;
			txtarea.focus();
			return;
		}
		document.selection.createRange().text = openTag + theSelection + closeTag;
		txtarea.focus();
		return;
	}
	else if (txtarea.selectionEnd && (txtarea.selectionEnd - txtarea.selectionStart > 0))
	{
		mozWrap(txtarea, openTag, closeTag);
		return;
	}
	else
	{
		txtarea.value += openTag + closeTag;
		txtarea.focus();
	}
	storeCaret(txtarea);	
}

// From http://www.massless.org/mozedit/
function mozWrap(txtarea, openTag, closeTag)
{
	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);
	txtarea.value = s1 + openTag + s2 + closeTag + s3;
	return;
}

// Insert at Caret 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();
}