// JavaScript Document
/// ***** AJAX ********************
var http=false;
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_win = ((clientPC.indexOf('win') != -1) || (clientPC.indexOf('16bit') != -1));


if (window.XMLHttpRequest) {
  http=new XMLHttpRequest();
} else if (window.ActiveXObject) {
  http=new ActiveXObject("Microsoft.XMLHTTP");
}

function galerie(variables)
	{
	http.abort();
	request="scripts/show.php?id=" + variables;
	http.open("GET",request,true);
	http.onreadystatechange=function()
		{
		if (http.readyState==4)
			{
			document.getElementById("foto_gal").innerHTML=http.responseText;
			}
		}
	http.send(null);
	}
//// Insertions
//////////////////////////////////////////////////
var form_name = '';
var text_name = '';

var bbcode = new Array();
bbtags = new Array('[b]','[/b]','[i]','[/i]','[u]','[/u]','[quote]','[/quote]','[code]','[/code]','[list]','[/list]','[list=]','[/list]','[img]','[/img]','[url]','[/url]','[flash=]', '[/flash]','[size=]','[/size]', '[hr=]', '[/hr]');
var imageTag = false;

var theSelection = false;

// 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_win = ((clientPC.indexOf('win') != -1) || (clientPC.indexOf('16bit') != -1));

var baseHeight;
//window.onload = initInsertions;



function bbfontstyle(form,text,bbopen, bbclose)
{
	theSelection = false;
	form_name = form;
	text_name = text;
	var textarea = document.forms[form_name].elements[text_name];

	textarea.focus();

	if ((clientVer >= 4) && is_ie && is_win)
	{
		// Get text selection
		theSelection = document.selection.createRange().text;

		if (theSelection)
		{
			// Add tags around selection
			document.selection.createRange().text = bbopen + theSelection + bbclose;
			document.forms[form_name].elements[text_name].focus();
			theSelection = '';
			return;
		}
	}
	else if (document.forms[form_name].elements[text_name].selectionEnd && (document.forms[form_name].elements[text_name].selectionEnd - document.forms[form_name].elements[text_name].selectionStart > 0))
	{
		mozWrap(document.forms[form_name].elements[text_name], bbopen, bbclose);
		document.forms[form_name].elements[text_name].focus();
		theSelection = '';
		return;
	}
	
	//The new position for the cursor after adding the bbcode
	var caret_pos = getCaretPosition(textarea).start;
	var new_pos = caret_pos + bbopen.length;

	// Open tag
	insert_text(bbopen + bbclose);

	// Center the cursor when we don't have a selection
	// Gecko and proper browsers
	if (!isNaN(textarea.selectionStart))
	{
		textarea.selectionStart = new_pos;
		textarea.selectionEnd = new_pos;
	}	
	// IE
	else if (document.selection)
	{
		var range = textarea.createTextRange(); 
		range.move("character", new_pos); 
		range.select();
		storeCaret(textarea);
	}

	textarea.focus();
	return;
}

function storeCaret(textEl)
{
	if (textEl.createTextRange)
	{
		textEl.caretPos = document.selection.createRange().duplicate();
	}
}

/**
* Caret Position object
*/
function caretPosition()
{
	var start = null;
	var end = null;
}


/**
* Get the caret position in an textarea
*/
function getCaretPosition(txtarea)
{
	var caretPos = new caretPosition();
	
	// simple Gecko/Opera way
	if(txtarea.selectionStart || txtarea.selectionStart == 0)
	{
		caretPos.start = txtarea.selectionStart;
		caretPos.end = txtarea.selectionEnd;
	}
	// dirty and slow IE way
	else if(document.selection)
	{
		// get current selection
		var range = document.selection.createRange();

		// a new selection of the whole textarea
		var range_all = document.body.createTextRange();
		range_all.moveToElementText(txtarea);
		
		// calculate selection start point by moving beginning of range_all to beginning of range
		var sel_start;
		for (sel_start = 0; range_all.compareEndPoints('StartToStart', range) < 0; sel_start++)
		{		
			range_all.moveStart('character', 1);
		}
	
		txtarea.sel_start = sel_start;
	
		// we ignore the end value for IE, this is already dirty enough and we don't need it
		caretPos.start = txtarea.sel_start;
		caretPos.end = txtarea.sel_start;
	}

	return caretPos;
}

function insert_text(text, spaces, popup)
{
	var textarea;
	
	if (!popup) 
	{
		textarea = document.forms[form_name].elements[text_name];
	} 
	else 
	{
		textarea = opener.document.forms[form_name].elements[text_name];
	}
	if (spaces) 
	{
		text = ' ' + text + ' ';
	}
	
	if (!isNaN(textarea.selectionStart))
	{
		var sel_start = textarea.selectionStart;
		var sel_end = textarea.selectionEnd;

		mozWrap(textarea, text, '')
		textarea.selectionStart = sel_start + text.length;
		textarea.selectionEnd = sel_end + text.length;
	}	
	
	else if (textarea.createTextRange && textarea.caretPos)
	{
		if (baseHeight != textarea.caretPos.boundingHeight) 
		{
			textarea.focus();
			storeCaret(textarea);
		}		
		var caret_pos = textarea.caretPos;
		caret_pos.text = caret_pos.text.charAt(caret_pos.text.length - 1) == ' ' ? caret_pos.text + text + ' ' : caret_pos.text + text;
		
	}
	else
	{
		textarea.value = textarea.value + text;
	}
	if (!popup) 
	{
		textarea.focus();
	} 	

}


////////////////////////////////////////////////////////////////////////////////




function insertcode(id_target,ie_target,code_1,code_2)
	{
	//theSelection = false;
	id_form = id_target + "_form";
	if ((clientVer >= 4) && is_ie && is_win)
		{
		var selectedText = document.getElementById(ie_target).value;
		//alert(selectedText);
		document.getElementById(ie_target).value = selectedText + code_1 + code_2;
		}
	else if (document.forms[id_form].elements[id_target].selectionEnd && (document.forms[id_form].elements[id_target].selectionEnd - document.forms[id_form].elements[id_target].selectionStart > 0))
		{
		var textarea = document.forms[id_form].elements[id_target];
		textarea.focus();
		mozWrap(document.forms[id_form].elements[id_target], code_1, code_2);
		document.forms[id_form].elements[id_target].focus();
		theSelection = '';
		return;
		}
	else
		{
		var selectedText = document.getElementById(id_target).value;
		document.getElementById(id_target).value = selectedText + code_1 + code_2;
		}
	}
	
function mozWrap(txtarea, open, close)
	{
	var selLength = txtarea.textLength;
	var selStart = txtarea.selectionStart;
	var selEnd = txtarea.selectionEnd;
	var scrollTop = txtarea.scrollTop;
	
	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 + open + s2 + close + s3;
	txtarea.selectionStart = selEnd + open.length + close.length;
	txtarea.selectionEnd = txtarea.selectionStart;
	txtarea.focus();
	txtarea.scrollTop = scrollTop;

	return;
	}

function module(id_target,todo,id_source,evt)
	{
	//alert(id_target+","+todo+","+id_source);
	http.abort();
	//
	if(id_source == "edit")
		{
		if(document.all) // Exploder
			{
			setX = document.documentElement.clientWidth;
			}
		else
			{
			setX = window.innerWidth;
			}
		pos_left = (setX / 2) - 250; 
		//alert(setX);
		if(window.document.getElementById(id_target).style.display == 'none')
			{
			window.document.getElementById(id_target).style.display='block';
			window.document.getElementById(id_target).style.width = "500px";
			//window.document.getElementById(id_target).style.height = "100px";
			window.document.getElementById(id_target).style.background = "#F0F0FF";
			window.document.getElementById(id_target).style.border = "1px solid #8080FF";
			window.document.getElementById(id_target).style.top = "20px";
			window.document.getElementById(id_target).style.left = pos_left + "px";
			window.document.getElementById(id_target).style.position = "absolute";
			request="scripts/show.php?id=" + todo;
			http.open("GET",request,true);
			http.onreadystatechange=function()
				{
				if (http.readyState==4)
					{
					//alert("4: " + http.readyState + request);
					document.getElementById(id_target).innerHTML=http.responseText;
					}
				}
			http.send(null);
			}
		else
			{
			window.document.getElementById(id_target).style.display='none';
			}
		}
	if(id_target == "right_click" && id_source != "edit")
		{
		var posX = mouseX(evt) + 5;
		var posY = mouseY(evt) + 5;
		if(window.document.getElementById(id_target).style.display == 'none' || id_source == 'show')
			{
			window.document.getElementById(id_target).style.display='block';
			window.document.getElementById(id_target).style.width = "500px";
			if(id_source == 'left')
				{
				//posY -= 150;
				posX -= 500;
				}
			if(id_source != 'show')
				{
				window.document.getElementById(id_target).style.top = posY + "px";
				window.document.getElementById(id_target).style.left = posX + "px";
				}
			}
		else
			{
			window.document.getElementById(id_target).style.display='none';
			}
		request="scripts/show.php?id=" + todo;
		//alert(request);
		http.open("GET",request,true);
		http.onreadystatechange=function()
			{
			if (http.readyState==4)
				{
				//alert("4: " + http.readyState + request);
				document.getElementById(id_target).innerHTML=http.responseText;
				}
			}
		http.send(null);
		}
	else
		{
		if(id_source == "galerie")
			{
			request="scripts/show.php?id=" + todo;
			alert(request);
			}
		else if(id_source == "map")
			{
			alert(request);
			}
		else
			{
			variable = document.getElementById(id_source).value;
			request="scripts/show.php?id=" + todo + ";" + variable;
			}
		//alert(request);
		http.open("GET",request,true);
		http.onreadystatechange=function()
			{
			if (http.readyState==4)
				{
				document.getElementById(id_target).innerHTML=http.responseText;
				}
			}
		http.send(null);
		}
	}
/// ********************************
function FilterGalery(id,event)
	{
	sel_id = document.getElementById('id_galerie').value;
	//alert(sel_id);
	module('right_click','6;'+sel_id+';0;'+id,'show',event);
	}
function FindFoto(id,event)
	{
	sel_id = document.getElementById('findfoto').value;
	//alert(sel_id);
	module('right_click','6;'+sel_id+';0;'+id,'show',event);
	}
function InsertIntoInput(target_id,target_value)
	{
	document.getElementById(target_id).value = target_value;
	}

function delete_id(link)
	{
	var arr_link = link.split(",");
	if(confirm('Opravdu chcete smazat záznam ID:' + arr_link[1] + ' ?'))
	    {
		//alert("X " + link);
		location.href = link;
		}
    //split(link,",");
	//Confirm ("Opravdu chcete smazat záznam č. " + split[1]);
	}

function ShowPreview(link,text,lng)
	{
	var setX = 0;
	var setY = 0;
	if(document.all) // Exploder
		{
		setX = document.documentElement.scrollLeft;
		setY = document.documentElement.scrollTop;
		}
	else
	    {
	    setX = window.pageXOffset;
	    setY = window.pageYOffset;
	    }
	//alert("Exploder: " + setX + "," + setY);
		if(link == 'Hide')
		    {
		    window.document.getElementById("preview_galerie").style.display='none';
		    }
		else
			{
			if(link!="galerie")
			   {
				window.document.getElementById("preview_galerie").innerHTML='<img src="' + link + '" onClick="ShowPreview(\'Hide\')"  title="' + text + '">';
				}
			else
			   {
				//http.abort();
				request="scripts/show.php?id=2;" + text;
				//alert(request);
				http.open("GET",request,true);
				http.onreadystatechange=function()
					{
					if (http.readyState==4)
						{
						window.document.getElementById("preview_galerie").innerHTML=http.responseText;
						}
					}
				http.send(null);
			   }
		window.document.getElementById("preview_galerie").style.display='block';
		window.document.getElementById("preview_galerie").style.top = setY + "px";
		window.document.getElementById("preview_galerie").style.left = setX + "px";
		}
	}
/////////////
function mouseX(evt) {
if (evt.pageX) return evt.pageX;
else if (evt.clientX)
   return evt.clientX + (document.documentElement.scrollLeft ?
   document.documentElement.scrollLeft :
   document.body.scrollLeft);
else return null;
}
function mouseY(evt) {
if (evt.pageY) return evt.pageY;
else if (evt.clientY)
   return evt.clientY + (document.documentElement.scrollTop ?
   document.documentElement.scrollTop :
   document.body.scrollTop);
else return null;
}
function whichkey(evt)
	{
	//event.key.keysym.sym
	var x = evt.control;
	return x;
	}
///////////////
function MousePreview(evt,link,text)
	{
	var posX = mouseX(evt) + 5;
	var posY = mouseY(evt) + 5;
	if(link == 'Hide')
	    {
	    window.document.getElementById("mouse_preview").style.display='none';
	    }
	else
	    {
	    window.document.getElementById("mouse_preview").style.display='block';
		window.document.getElementById("mouse_preview").innerHTML='<img src="' + link + '" onClick="ShowPreview(\'Hide\')" title="' + text + '" style="position: relative; top: -1px; left: -1px;">';
	    window.document.getElementById("mouse_preview").style.top = posY + 'px';
	    window.document.getElementById("mouse_preview").style.left= posX + 'px';
	    }
	}