function insText (id, sel, tag1, tag2) {
	var messageField = document.getElementById(id);
	var selStart = messageField.selectionStart;
	var selEnd = messageField.selectionEnd;
	var MsgVal = messageField.value;
	var text = new String();
	var step = new Number();
	messageField.focus();
	if(!sel && !tag1) {
		alert('Для вставки цитаты необходимо выделить нужное мышью.');
	}
	else {
		if(document.selection) {
			if (sel && !tag1 && !tag2)
				messageField.document.selection.createRange().text = sel;
			else
				messageField.document.selection.createRange().text = tag1 + messageField.document.selection.createRange().text + tag2;
		}
		else {
			if (selStart || messageField.selectionStart == '0') {
				step = tag1.length + sel.length + tag2.length;
				text = MsgVal.substring(0, selStart) + tag1 + sel;
				text += ((!sel || selStart == selEnd) ? MsgVal.substring(selStart, selEnd) : '') + tag2;
				text += MsgVal.substring(selEnd, MsgVal.length);
				messageField.value = text;
				messageField.selectionStart = selStart + selEnd + step;
				messageField.selectionEnd = selEnd + step;
			}
		}
	}
	messageField.focus();
}
function ReceiveData (req, btn) {
	if (req.readyState == 4) {
		var busy = document.getElementById('busy');
		busy.style.display = 'none';
		if (req.responseJS.debug) {
/*			if (document.getElementById('debug'))
				document.getElementById('debug').innerHTML = '<pre>' + htmlspecialchars(req.responseText, 'ENT_QUOTES') + '</pre>';
			else*/
				alert(req.responseText);
		}
		if (req.responseJS.error != '')
			alert('Ошибка:\n' + req.responseJS.error);
		else {
			if (req.responseJS.alert) {
				alert(req.responseJS.alert);
			}
			if (req.responseJS.dialog) {
				if (req.responseJS.dialog.inner) {
					req.responseJS.dialog.inner = req.responseJS.dialog.inner.replace('{CLOSE}', "<img class=imgcancel src=\"" + img_cancel + "\" onclick=\"dialogClose();\">");
					var dialog = document.getElementById('cDialog');
					if (dialog.style.display != 'none')
						dialogClose();
					if (document.getElementById('videoofday'))
						document.getElementById('videoofday').style.visibility = 'hidden';
					var t = 0;
// 					print_r(document.embeds[0]);
					for (var i = 0; i < document.embeds.length; i++)
						document.embeds[i].style.visibility = 'hidden';
					var blank = document.getElementById('imgBlank');
					dialog.innerHTML = req.responseJS.dialog.inner;
					dialog.style.display = "inline";
					var hg = document.body.scrollTop + ((window.innerHeight) ? window.innerHeight : ((document.all) ? document.body.offsetHeight : 0)) / 2;
					var wg = document.body.scrollLeft + ((window.innerWidth) ? window.innerWidth : ((document.all) ? document.body.offsetWidth : 0)) / 2;
					var dw = ((req.responseJS.dialog.w) ? req.responseJS.dialog.w : dialog.offsetWidth)
					var dh = ((req.responseJS.dialog.h) ? req.responseJS.dialog.h : dialog.offsetHeight)
					blank.style.width = document.body.scrollWidth;
					blank.style.height = document.body.scrollHeight;
					if (req.responseJS.dialog.w && req.responseJS.dialog.h) {
						dialog.style.height = dh;
						dialog.style.width = dw;
					}
					dialog.style.top = (hg > dialog.offsetHeight / 2 && hg - dh / 2 > document.body.scrollTop) ? hg - dh / 2 : document.body.scrollTop;
					dialog.style.left = (wg > dialog.offsetWidth / 2) ? wg - dw / 2 : 0;
					dialog.style.visibility = "visible";
					ShowShadow();
					if (document.getElementById('imageshow')) {
						document.getElementById('busy').style.display = 'inline';
						image = document.getElementById('imageshow');
						image.onload = function() {
							document.getElementById('busy').style.display = 'none';
						}
/*						if (document.body.scrollTop > dialog.offsetTop)
							document.body.scrollTop = dialog.offsetTop;*/
					}
					if (req.responseJS.dialog.focus && document.getElementById(req.responseJS.dialog.focus))
						document.getElementById(req.responseJS.dialog.focus).focus();
				}
				else
					dialogClose();
			}
			if (req.responseJS.filter) {
				filter = document.getElementById('filter');
				filter.innerHTML = req.responseJS.filter;
				filter.style.left = btn.x;
				filter.style.top = btn.y - 3;
			}
			if (req.responseJS.view) {
				for (var i = 0; i < req.responseJS.view.length; i ++) {
					if (req.responseJS.view[i] && req.responseJS.view[i].container && document.getElementById(req.responseJS.view[i].container)) {
						var container = document.getElementById(req.responseJS.view[i].container);
						if (req.responseJS.view[i].inner || req.responseJS.view[i].inner == '' || req.responseJS.view[i].inner == 0) {
							container.innerHTML = req.responseJS.view[i].inner;
							document.getElementById(req.responseJS.view[i].container).parentNode.appendChild(document.getElementById(req.responseJS.view[i].container));
							if (req.responseJS.view[i].scrolltop && document.body.scrollTop > req.responseJS.view[i].scrolltop)
								document.body.scrollTop = req.responseJS.view[i].scrolltop;
							if (req.responseJS.view[i].focusid && document.getElementById(req.responseJS.view[i].focusid))
								document.getElementById(req.responseJS.view[i].focusid).focus();
						}
						else if (req.responseJS.view[i].value || req.responseJS.view[i].value == '' || req.responseJS.view[i].value == 0)
							container.value = req.responseJS.view[i].value;
					}
				}
			}
			if (req.responseJS.referer) {
				if (req.responseJS.referer != '.') {
					window.location.href = req.responseJS.referer;
				}
				else {
					location.reload(true);
				}
			}
		}
		if (btn)
			btn.style.visibility = 'visible';
	}
}
function SendData(op, btn, conf, formid, QuotedText) {
	if (conf)
		answerconf = confirm(conf);
	if (!conf || answerconf) {
		var req = new JsHttpRequest();
		if (btn)
			btn.style.visibility = 'hidden';
		var busy = document.getElementById('busy');
		var hg = window.innerHeight;
		var wg = window.innerWidth;
		busy.style.top = document.body.scrollTop + ((window.innerHeight) ? window.innerHeight : ((document.all) ? document.body.offsetHeight : 0)) / 2 - 15;
		busy.style.left = document.body.scrollLeft + ((window.innerWidth) ? window.innerWidth : ((document.all) ? document.body.offsetWidth : 0)) / 2 - 15;
		busy.style.display = 'inline';
		req.onreadystatechange = function () { ReceiveData(req, btn); }
		req.open(null, p_http + 'opbg.php?op=' + op, true);
		if (document.getElementById('formtosend') && !formid)
			req.send(document.getElementById('formtosend'));
		else if (formid && document.getElementById(formid))
			req.send( document.getElementById(formid) );
		else if (QuotedText) {
			req.send( {quoted: "" + QuotedText + ""});
		}
		else
			req.send(null);
	}
}
function dialogClose() {
	if (document.getElementById('videoofday'))
		document.getElementById('videoofday').style.visibility = 'visible';
	for (var i = 0; i < document.embeds.length; i++)
		document.embeds[i].style.visibility = 'visible';
	var dialog = document.getElementById('cDialog');
	dialog.innerHTML = '';
	dialog.style.top = '';
	dialog.style.left = '';
	dialog.style.width = '';
	dialog.style.height = '';
	dialog.style.visibility = "hidden";
	dialog.style.display = "none";
	var blank = document.getElementById('imgBlank');
	blank.style.width = "0";
	blank.style.height = "0";
	ShowShadow();
}
function ShowPhoto(id) {
	SendData('getphoto&id=' + id);
}
function ShowFilePic(id) {
	SendData('getfilepic&id=' + id);
}
function AddBrowse() {
	var item = document.createElement('input');
	item.type = 'file';
	item.name = 'photo[]';
	document.getElementById('files').appendChild(item);
	item = document.createElement('br');
	document.getElementById('files').appendChild(item);
	document.getElementById('cDialogShadow').style.height = document.getElementById('cDialog').offsetHeight;
}
function ShowShadow() {
	if (document.getElementById('cDialog') && document.getElementById('cDialogShadow')) {
		var dialog = document.getElementById('cDialog');
		var shadow = document.getElementById('cDialogShadow');
		shadow.style.width = dialog.offsetWidth;
		shadow.style.height = dialog.offsetHeight;
		shadow.style.top = dialog.offsetTop + 3;
		shadow.style.left = dialog.offsetLeft + 3;
		shadow.style.visibility = dialog.style.visibility;
		shadow.style.display = dialog.style.display;
		if (dialog.style.display == 'inline')
			setTimeout("ShowShadow();", 500);
	}
}
function ShowImageInfo(e) {
	if (document.getElementById('imageinfo')) {
		document.getElementById('imageinfo').style.display = 'inline';
	}
}
function HideImageInfo() {
	if (document.getElementById('imageinfo'))
		document.getElementById('imageinfo').style.display = 'none';
}
function SetFav(e) {
	if (e && e > 0 && e < 6)
		document.getElementById('fav').style.width = e * 16 + 'px';
	else
		document.getElementById('fav').style.width = e + 'px';
}
function SelectFav(id, fav) {
	SendData('setfav&id=' + id + '&fav=' + fav);
}
function SelectionStart(id) {
	SelStart = id;
}
function SelectionEnd(id) {
	SelEnd = id;
}
function SelectionQuote(op) {
	if (!SelStart || !SelEnd)
		alert('Не выделен текст, либо выделен текст вне сообщения.');
	else if (SelStart != SelEnd)
		alert('Нельзя цитировать несколько сообщений.');
	else {
		if (window.getSelection)
			var QuotedText = window.getSelection();
		else if (document.getSelection)
			var QuotedText = document.getSelection();
		else if (document.selection)
			var QuotedText = document.selection.createRange().text;
		else return;
		if (!QuotedText)
			alert('Для цитирования необходимо выдиелить текст.');
		else if (QuotedText.toString().length > 2000)
			alert('Оверквотинг. Однозначно.');
		else {
			SendData(op + '&quote_id=' + SelStart, '', '', '', QuotedText);
		}
	}
	SelStart = 0;
	SelEnd = 0;
}
function ShowTools(id, obj) {
	if (document.getElementById(id)) {
		toolbox = document.getElementById(id);
		if (toolbox.style.display == 'inline' && toolbox.title == obj.id)
			toolbox.style.display = 'none';
		else {
			toolbox.title = obj.id;
			toolbox.style.display = 'inline';
			toolbox.style.top = obj.getBoundingClientRect().bottom + document.body.scrollTop;
			toolbox.style.left = obj.getBoundingClientRect().right - toolbox.offsetWidth +  + document.body.scrollLeft;
		}
	}
}
function ShowPhotoTools(obj) {
	ShowTools('phototools', obj);
}
function ShowFileTools(obj) {
	ShowTools('filetools', obj);
}
function ShowMsgTools(obj) {
	ShowTools('msgtools', obj);
}
function ShowCommentTools(obj) {
	ShowTools('commenttools', obj);
}