// Sniffer based on http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html

var uagent    = navigator.userAgent.toLowerCase();
var is_safari = ( (uagent.indexOf('safari') != -1) || (navigator.vendor == "Apple Computer, Inc.") );
var is_opera  = (uagent.indexOf('opera') != -1);
var is_webtv  = (uagent.indexOf('webtv') != -1);
var is_ie     = ( (uagent.indexOf('msie') != -1) && (!is_opera) && (!is_safari) && (!is_webtv) );
var is_ie4    = ( (is_ie) && (uagent.indexOf("msie 4.") != -1) );
var is_moz    = ( (navigator.product == 'Gecko')  && (!is_opera) && (!is_webtv) && (!is_safari) );
var is_ns     = ( (uagent.indexOf('compatible') == -1) && (uagent.indexOf('mozilla') != -1) && (!is_opera) && (!is_webtv) && (!is_safari) );
var is_ns4    = ( (is_ns) && (parseInt(navigator.appVersion) == 4) );
var is_kon    = (uagent.indexOf('konqueror') != -1);

var is_win    =  ( (uagent.indexOf("win") != -1) || (uagent.indexOf("16bit") !=- 1) );
var is_mac    = ( (uagent.indexOf("mac") != -1) || (navigator.vendor == "Apple Computer, Inc.") );

function $( id ) {
	return document.getElementById( id );
}

function showHide( id ) {

	if ($( id ).style.display == 'none') {
		$( id ).style.display = '';
	} else {
		$( id ).style.display = 'none';
	}

}

function hideShow( id ) {

	if ($( id ).style.display == '') {
		$( id ).style.display = 'none';
	} else {
		$( id ).style.display = '';
	}

}


function show( id ) {
	$( id ).style.display = '';
}

function hide( id ) {
	$( id ).style.display = 'none';
}

function _noBubbling( e ) {

	e = _fixE( e );
	if (typeof(e) != 'undefined') {
		if (!e.cancelBubble) e.cancelBubble = true;
		if (e.stopPropagation) e.stopPropagation();
	}
    return false;

}

function _fixE( e ) {
	//if (is_ie) e = event;
	if (!e) var e = window.event;
	return e;
}

function showFloatWindow( id, e, noBubbling ) {

	if (noBubbling != '1') {
		_noBubbling( e );
	}
	$('float-layer-content').innerHTML = $( id ).innerHTML;
	$('float-layer-content').onclick = _noBubbling;
	show('float-layer-wrapper');
	document.onclick = function() { hide('float-layer-wrapper'); }

}

/**
 * Gets the value of the specified cookie.
 *
 * name  Name of the desired cookie.
 *
 * Returns a string containing value of specified cookie,
 *   or null if cookie does not exist.
 */
function getCookie( name ) {

	if (!name) return;
	else name = 'alyth-'+name;

    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);

    if (begin == -1) {

        begin = dc.indexOf(prefix);
        if (begin != 0) return null;

    } else {

        begin += 2;

    }

    var end = document.cookie.indexOf(";", begin);

    if (end == -1) {

        end = dc.length;

    }
    return unescape(dc.substring(begin + prefix.length, end));

}

/**
 * Sets a Cookie with the given name and value.
 *
 * name       Name of the cookie
 * value      Value of the cookie
 * [expires]  Expiration date of the cookie (default: end of current session) (days)!!!
 * [path]     Path where the cookie is valid (default: path of calling document)
 * [domain]   Domain where the cookie is valid
 *              (default: domain of calling document)
 * [secure]   Boolean value indicating if the cookie transmission requires a
 *              secure transmission
 */
function setCookie( name, value, expires, path, domain, secure ) {

	if (!name) return;
	else name = 'alyth-'+name;
	var today = new Date();
	today.setTime(today.getTime());

	if (expires) {
		expires = expires * 1000 * 60 * 60 * 24;
	}

	var expires_date = new Date( today.getTime() + (expires) );

	document.cookie = name+'='+escape(value) +
		((expires) ? ';expires='+expires_date.toGMTString() : '') +
		((path) ? ';path=' + path : '') +
		((domain) ? ';domain=' + domain : '') +
		((secure) ? ';secure' : '');
}



function closeSticker( id ) {
	var hidden = getCookie( 'top-sticker' );
	if (hidden == null) { hidden = ''; }
	setCookie( 'top-sticker', hidden + ':' + id, 365 );
	hide('top-sticker');
}

var editorID = 'comment-editor';
window.onerror = null;

editor = {

	ok: 'ok',

	insert: function (ibTag, ibClsTag, isSingle) {

		var isClose = false;
		var obj_ta = $( editorID );

		//----------------------------------------
		// It's IE!
		//----------------------------------------
		if ( is_ie && is_win)	{

			if (obj_ta.isTextEdit) {

				obj_ta.focus();
				var sel = document.selection;
				var rng = sel.createRange();
				rng.colapse;
				if((sel.type == "Text" || sel.type == "None") && rng != null) {

					if(ibClsTag != "" && rng.text.length > 0)
						ibTag += rng.text + ibClsTag;
					else if(isSingle)
						isClose = true;

					rng.text = ibTag;
				}
			} else {
				if(isSingle) {
					isClose = true;
				}

				obj_ta.value += ibTag;
			}
		}
		//----------------------------------------
		// It's MOZZY!
		//----------------------------------------

		else if ( obj_ta.selectionEnd ) {
			var ss = obj_ta.selectionStart;
			var st = obj_ta.scrollTop;
			var es = obj_ta.selectionEnd;

			if (es <= 2) {
				es = obj_ta.textLength;
			}

			var start  = (obj_ta.value).substring(0, ss);
			var middle = (obj_ta.value).substring(ss, es);
			var end    = (obj_ta.value).substring(es, obj_ta.textLength);

			//-----------------------------------
			// text range?
			//-----------------------------------

			if (obj_ta.selectionEnd - obj_ta.selectionStart > 0) {
				middle = ibTag + middle + ibClsTag;
			} else {
				middle = ibTag + middle;

				if (isSingle) {
					isClose = true;
				}
			}

			obj_ta.value = start + middle + end;

			var cpos = ss + (middle.length);

			obj_ta.selectionStart = cpos;
			obj_ta.selectionEnd   = cpos;
			obj_ta.scrollTop      = st;


		}
		//----------------------------------------
		// It's CRAPPY!
		//----------------------------------------
		else {
			if (isSingle) {
				isClose = true;
			}

			obj_ta.value += ibTag;
		}

		obj_ta.focus();

		return isClose;

	}

}

function doInsert( tag ) {
	editor.insert( tag, '', true);
}

function simpleQuote(author, cid) {

	if (!author || !cid) return;
	var comment = $( 'comment-'+cid ).innerHTML ? $( 'comment-'+cid ).innerHTML : null;
	if (!comment) return;
	comment = comment.replace(/\n/g, "");
	comment = comment.replace(/\t/g, "");
	comment = comment.replace(/\r/g, "");
	comment = comment.replace(/<div class="text-quote"(.*)<\/div>/g, "");
	comment = comment.replace(/<(\/?)strike>/g, "[$1s]");
	comment = comment.replace(/<(\/?)strong>/g, "[$1b]");
	comment = comment.replace(/<(\/?)i>/g, "[$1i]");
	comment = comment.replace(/<(\/?)u>/g, "[$1u]");
	comment = comment.replace(/<br?\/?>/g, "\n");
	comment = comment.replace(/^\n*/, "");
	comment = comment.replace(/\n*$/, "");


	comment = "[quote="+author+"]"+comment+"[/quote]\n";
	doInsert( comment );

}

var floatSelection = "";
var selection_id = 0;
function floatSelect( e, author ) {

	var str = "";

	if (window.getSelection) {
		str = window.getSelection();
	} else if (document.getSelection) {
		str = document.getSelection();
	} else if (document.selection && document.selection.createRange) {
		var range = document.selection.createRange();
		str = range.text;
	} else {
		str = "Sorry, this is not possible with your browser.";
	}

	var quoteButton = $("quote-button");

	if (str != "") {
		var coords = getMouseCoords( e );
        floatSelection = "[quote="+author+"]"+str+"[/quote]\n";
		coords[0]+=5; coords[1]+=5;
		quoteButton.style.left = coords[0]+"px";
		quoteButton.style.top = coords[1]+"px";
		quoteButton.style.display = "block";
	} else {
		quoteButton.style.display = 'none';
	}

	_noBubbling( e );

}

function floatQuote() {
	doInsert( floatSelection );
	hide('quote-button');
}

function getMouseCoords(evt) {

	posx = 0;
	posy = 0;
	if (evt.pageX) return [ evt.pageX, evt.pageY ];
	else if (evt.clientX) {

   	     posx = evt.clientX + (document.documentElement.scrollLeft ?
   	     	  document.documentElement.scrollLeft :
   	     	  document.body.scrollLeft);
   	     posy = evt.clientY + (document.documentElement.scrollTop ?
   	     	  document.documentElement.scrollTop :
   	     	  document.body.scrollTop);

   	     return [posx, posy ];

	}

 	else return null;

}