/* 
------------------------------------------
	Flipbox written by CrappoMan
	simonpatterson@dsl.pipex.com
------------------------------------------
*/
function flipBox(who) {
	var tmp; 
	if (document.images['b_' + who].src.indexOf('_on') == -1) { 
		tmp = document.images['b_' + who].src.replace('_off', '_on');
		document.getElementById('box_' + who).style.display = 'none';
		document.images['b_' + who].src = tmp;
	} else { 
		tmp = document.images['b_' + who].src.replace('_on', '_off');
		document.getElementById('box_' + who).style.display = 'block';
		document.images['b_' + who].src = tmp;
	} 
}

function addText(elname, wrap1, wrap2) {
	if (document.selection) { // for IE 
		var str = document.selection.createRange().text;
		document.forms['inputform'].elements[elname].focus();
		var sel = document.selection.createRange();
		sel.text = wrap1 + str + wrap2;
		return;
	} else if ((typeof document.forms['inputform'].elements[elname].selectionStart) != 'undefined') { // for Mozilla
		var txtarea = document.forms['inputform'].elements[elname];
		var selLength = txtarea.textLength;
		var selStart = txtarea.selectionStart;
		var selEnd = txtarea.selectionEnd;
		var oldScrollTop = 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 + wrap1 + s2 + wrap2 + s3;
		txtarea.selectionStart = s1.length;
		txtarea.selectionEnd = s1.length + s2.length + wrap1.length + wrap2.length;
		txtarea.scrollTop = oldScrollTop;
		txtarea.focus();
		return;
	} else {
		insertText(elname, wrap1 + wrap2);
	}
}

function insertText(elname, what) {
	if (document.forms['inputform'].elements[elname].createTextRange) {
		document.forms['inputform'].elements[elname].focus();
		document.selection.createRange().duplicate().text = what;
	} else if ((typeof document.forms['inputform'].elements[elname].selectionStart) != 'undefined') { // for Mozilla
		var tarea = document.forms['inputform'].elements[elname];
		var selEnd = tarea.selectionEnd;
		var txtLen = tarea.value.length;
		var txtbefore = tarea.value.substring(0,selEnd);
		var txtafter =  tarea.value.substring(selEnd, txtLen);
		var oldScrollTop = tarea.scrollTop;
		tarea.value = txtbefore + what + txtafter;
		tarea.selectionStart = txtbefore.length + what.length;
		tarea.selectionEnd = txtbefore.length + what.length;
		tarea.scrollTop = oldScrollTop;
		tarea.focus();
	} else {
		document.forms['inputform'].elements[elname].value += what;
		document.forms['inputform'].elements[elname].focus();
	}
}

function show_hide(msg_id) {
	msg_id.style.display = msg_id.style.display == 'none' ? 'block' : 'none';
}

function es4uCas() {
  var PraveTed = new Date();
  var hod = PraveTed.getHours().toString();
  var min  = PraveTed.getMinutes().toString();
  var sec  = PraveTed.getSeconds().toString();
  if (min.length < 2)
    min = "0" + min;
  if (sec.length < 2)
    sec = "0" + sec;
  var cas = hod + ":" + min + ":" + sec;
  document.getElementById("es4uTime").innerHTML = cas;
  setTimeout("es4uCas();", 1000);
}


/* jQuery Image Magnify script v1.1
* This notice must stay intact for usage 
* Author: Dynamic Drive at http://www.dynamicdrive.com/
* Visit http://www.dynamicdrive.com/ for full source code

* Nov 16th, 09 (v1.1): Adds ability to dynamically apply/reapply magnify effect to an image, plus magnify to a specific width in pixels.
*/

jQuery.noConflict()

jQuery.imageMagnify={
	dsettings: {
		magnifyby: 8, //default increase factor of enlarged image
		duration: 500, //default duration of animation, in millisec
		imgopacity: 0.2 //opacify of original image when enlarged image overlays it
 	},
	cursorcss: 'url(magnify.cur), -moz-zoom-in', //Value for CSS's 'cursor' attribute, added to original image
	zIndexcounter: 100,

	refreshoffsets:function($window, $target, warpshell){
		var $offsets=$target.offset()
		var winattrs={x:$window.scrollLeft(), y:$window.scrollTop(), w:$window.width(), h:$window.height()}
		warpshell.attrs.x=$offsets.left //update x position of original image relative to page
		warpshell.attrs.y=$offsets.top
		warpshell.newattrs.x=winattrs.x+winattrs.w/2-warpshell.newattrs.w/2
		warpshell.newattrs.y=winattrs.y+winattrs.h/2-warpshell.newattrs.h/2
		if (warpshell.newattrs.x<winattrs.x+5){ //no space to the left?
			warpshell.newattrs.x=winattrs.x+5	
		}
		else if (warpshell.newattrs.x+warpshell.newattrs.w > winattrs.x+winattrs.w){//no space to the right?
			warpshell.newattrs.x=winattrs.x+5
		}
		if (warpshell.newattrs.y<winattrs.y+5){ //no space at the top?
			warpshell.newattrs.y=winattrs.y+5
		}
	},

	magnify:function($, $target, options){
		var setting={} //create blank object to store combined settings
		var setting=jQuery.extend(setting, this.dsettings, options)
		var attrs=(options.thumbdimensions)? {w:options.thumbdimensions[0], h:options.thumbdimensions[1]} : {w:$target.outerWidth(), h:$target.outerHeight()}
		var newattrs={}
		newattrs.w=(setting.magnifyto)? setting.magnifyto : Math.round(attrs.w*setting.magnifyby)
		newattrs.h=(setting.magnifyto)? Math.round(attrs.h*newattrs.w/attrs.w) : Math.round(attrs.h*setting.magnifyby)
		$target.css('cursor', jQuery.imageMagnify.cursorcss)
		if ($target.data('imgshell')){
			$target.data('imgshell').$clone.remove()
			$target.css({opacity:1}).unbind('click.magnify')
		}	
		var $clone=$target.clone().css({position:'absolute', left:0, top:0, visibility:'hidden', border:'1px solid gray', cursor:'pointer'}).appendTo(document.body)
		$clone.data('$relatedtarget', $target) //save $target image this enlarged image is associated with
		$target.data('imgshell', {$clone:$clone, attrs:attrs, newattrs:newattrs})
		$target.bind('click.magnify', function(e){ //action when original image is clicked on
			var $this=$(this).css({opacity:setting.imgopacity})
			var imageinfo=$this.data('imgshell')
			jQuery.imageMagnify.refreshoffsets($(window), $this, imageinfo) //refresh offset positions of original and warped images
			var $clone=imageinfo.$clone
			$clone.stop().css({zIndex:++jQuery.imageMagnify.zIndexcounter, left:imageinfo.attrs.x, top:imageinfo.attrs.y, width:imageinfo.attrs.w, height:imageinfo.attrs.h, opacity:0, visibility:'visible'})
			.animate({opacity:1, left:imageinfo.newattrs.x, top:imageinfo.newattrs.y, width:imageinfo.newattrs.w, height:imageinfo.newattrs.h}, setting.duration,
			function(){ //callback function after warping is complete
				//none added		
			}) //end animate
		}) //end click
		$clone.click(function(e){ //action when magnified image is clicked on
			var $this=$(this)
			var imageinfo=$this.data('$relatedtarget').data('imgshell')
			jQuery.imageMagnify.refreshoffsets($(window), $this.data('$relatedtarget'), imageinfo) //refresh offset positions of original and warped images
			$this.stop().animate({opacity:0, left:imageinfo.attrs.x, top:imageinfo.attrs.y, width:imageinfo.attrs.w, height:imageinfo.attrs.h},  setting.duration,
			function(){
				$this.hide()
				$this.data('$relatedtarget').css({opacity:1}) //reveal original image
			}) //end animate
		}) //end click
	}
};

jQuery.fn.imageMagnify=function(options){
	var $=jQuery
	return this.each(function(){ //return jQuery obj
		var $imgref=$(this)
		if (this.tagName!="IMG")
			return true //skip to next matched element
		if (parseInt($imgref.css('width'))>0 && parseInt($imgref.css('height'))>0 || options.thumbdimensions){ //if image has explicit width/height attrs defined
			jQuery.imageMagnify.magnify($, $imgref, options)
		}
		else if (this.complete){ //account for IE not firing image.onload
			jQuery.imageMagnify.magnify($, $imgref, options)
		}
		else{
			$(this).bind('load', function(){
				jQuery.imageMagnify.magnify($, $imgref, options)
			})
		}
	})
};

jQuery.fn.applyMagnifier=function(options){ //dynamic version of imageMagnify() to apply magnify effect to an image dynamically
	var $=jQuery
	return this.each(function(){ //return jQuery obj
		var $imgref=$(this)
		if (this.tagName!="IMG")
			return true //skip to next matched element
		
	})	

};


//** The following applies the magnify effect to images with class="magnify" and optional "data-magnifyby" and "data-magnifyduration" attrs
//** It also looks for links with attr rel="magnify[targetimageid]" and makes them togglers for that image

jQuery(document).ready(function($){
	var $targets=$('.magnify')
	$targets.each(function(i){
		var $target=$(this)
		var options={}
		if ($target.attr('data-magnifyto'))
			options.magnifyto=parseFloat($target.attr('data-magnifyto'))
		if ($target.attr('data-magnifyby'))
			options.magnifyby=parseFloat($target.attr('data-magnifyby'))
		if ($target.attr('data-magnifyduration'))
			options.duration=parseInt($target.attr('data-magnifyduration'))
		$target.imageMagnify(options)
	})
	var $triggers=$('a[rel^="magnify["]')
	$triggers.each(function(i){
		var $trigger=$(this)
		var targetid=$trigger.attr('rel').match(/\[.+\]/)[0].replace(/[\[\]']/g, '') //parse 'id' from rel='magnify[id]'
		$trigger.data('magnifyimageid', targetid)
		$trigger.click(function(e){
			$('#'+$(this).data('magnifyimageid')).trigger('click.magnify')
			e.preventDefault()
		})
	})
})

var OP = (navigator.userAgent.indexOf('Opera') != -1);
var IE = (navigator.userAgent.indexOf('MSIE') != -1 && !OP);
var GK = (navigator.userAgent.indexOf('Gecko') != -1);
var SA = (navigator.userAgent.indexOf('Safari') != -1);
var DOM = document.getElementById;

var tooltip = null;

function TOOLTIP() {
//----------------------------------------------------------------------------------------------------
// Configuration
//----------------------------------------------------------------------------------------------------
  this.width = 320;                     // width (pixels)
  this.bgColor = "#000000";             // background color
  this.textFont = "Tahoma";      // text font family
  this.textSize = 12;                   // text font size (pixels)
  this.textColor = "#ffffff";           // text color
  this.border = "1px solid #ffffff";   // border (CSS spec: size style color, e.g. "1px solid #D00000")
  this.opacity = 90;                    // opacity (0 - 100); not supported by all browsers
  this.cursorDistance = 15;              // distance from mouse cursor (pixels)
  this.xPos = 'right';                  // horizontal position: "left" or "right"
  this.yPos = 'bottom';                 // vertical position: "top" or "bottom"

  // don't change
  this.text = '';
  this.height = 0;
  this.obj = null;
  this.active = false;

//----------------------------------------------------------------------------------------------------
// Methods
//----------------------------------------------------------------------------------------------------
  this.create = function() {
    if(!this.obj) this.init();

    var s = (this.textFont ? 'font-family:' + this.textFont + '; ' : '') +
            (this.textSize ? 'font-size:' + this.textSize + 'px; ' : '') +
            (this.border ? 'border:' + this.border + '; ' : '') +
            (this.textColor ? 'color:' + this.textColor + '; ' : '');

    var t = '<table border=0 cellspacing=0 cellpadding=4 width=' + this.width + '><tr>' +
            '<td ' + (s ? ' style="' + s + ';padding:3px"' : '') + '>' + this.text +
            '</td></tr></table>';

    if(DOM || IE) this.obj.innerHTML = t;
    if(DOM) this.height = this.obj.offsetHeight;
    else if(IE) this.height = this.obj.style.pixelHeight;
    if(this.bgColor) this.obj.style.backgroundColor = this.bgColor;

    this.setOpacity();
    this.move();
    this.show();
  }

  this.init = function() {
    if(DOM) this.obj = document.getElementById('ToolTip');
    else if(IE) this.obj = document.all.ToolTip;
  }

  this.move = function() {
    var winX = getWinX() - (((GK && !SA) || OP) ? 17 : 0);
    var winY = getWinY() - (((GK && !SA) || OP) ? 17 : 0);
    var x = mouseX;
    var y = mouseY;

    if(this.xPos == 'left') {
      if(x - this.width - this.cursorDistance >= getScrX())
        x -= this.width + this.cursorDistance;
      else x += this.cursorDistance;
    }
    else {
      if(x + this.width + this.cursorDistance > winX + getScrX())
        x -= this.width + this.cursorDistance;
      else x += this.cursorDistance;
    }

    if(this.yPos == 'top') {
      if(y - this.height - this.cursorDistance >= getScrY())
        y -= this.height + this.cursorDistance;
      else y += this.cursorDistance;
    }
    else {
      if(y + this.height + this.cursorDistance > winY + getScrY())
        y -= this.height;
      else y += this.cursorDistance;
    }

    this.obj.style.left = x + 'px';
    this.obj.style.top = y + 'px';
  }

  this.show = function() {
    this.obj.style.zIndex = 69;
    this.active = true;
    this.obj.style.visibility = 'visible';
  }

  this.hide = function() {
    this.obj.style.zIndex = -1;
    this.active = false;
    this.obj.style.visibility = 'hidden';
  }

  this.setOpacity = function() {
    this.obj.style.opacity = this.opacity / 100;
    this.obj.style.MozOpacity = this.opacity / 100;
    this.obj.style.KhtmlOpacity = this.opacity / 100;
    this.obj.style.filter = 'alpha(opacity=' + this.opacity + ')';
  }
}

//----------------------------------------------------------------------------------------------------
// Global functions
//----------------------------------------------------------------------------------------------------
function getScrX() {
  var offset = 0;
  if(window.pageXOffset)
    offset = window.pageXOffset;
  else if(document.documentElement && document.documentElement.scrollLeft)
    offset = document.documentElement.scrollLeft;
  else if(document.body && document.body.scrollLeft)
    offset = document.body.scrollLeft;
  return offset;
}

function getScrY() {
  var offset = 0;
  if(window.pageYOffset)
    offset = window.pageYOffset;
  else if(document.documentElement && document.documentElement.scrollTop)
    offset = document.documentElement.scrollTop;
  else if(document.body && document.body.scrollTop)
    offset = document.body.scrollTop;
  return offset;
}

function getWinX() {
  var size = 0;
  if(window.innerWidth)
    size = window.innerWidth;
  else if(document.documentElement && document.documentElement.clientWidth)
    size = document.documentElement.clientWidth;
  else if(document.body && document.body.clientWidth)
    size = document.body.clientWidth;
  else size = screen.width;
  return size;
}

function getWinY() {
  var size = 0;
  if(window.innerHeight)
    size = window.innerHeight;
  else if(document.documentElement && document.documentElement.clientHeight)
    size = document.documentElement.clientHeight;
  else if(document.body && document.body.clientHeight)
    size = document.body.clientHeight;
  else size = screen.height;
  return size;
}

function getMouseXY(e) {
  if(e && e.pageX != null) {
    mouseX = e.pageX;
    mouseY = e.pageY;
  }
  else if(event && event.clientX != null) {
    mouseX = event.clientX + getScrX();
    mouseY = event.clientY + getScrY();
  }
  if(mouseX < 0) mouseX = 0;
  if(mouseY < 0) mouseY = 0;
  if(tooltip && tooltip.active) tooltip.move();
}

function toolTip(text, width, opacity) {
  if(text) {
    tooltip = new TOOLTIP();
    tooltip.text = text;
    if(width) tooltip.width = width;
    if(opacity) tooltip.opacity = opacity;
    tooltip.create();
  }
  else if(tooltip) tooltip.hide();
}

//----------------------------------------------------------------------------------------------------
// Build tooltip box
//----------------------------------------------------------------------------------------------------
document.write('<div id="ToolTip" style="position:absolute; visibility:hidden"></div>');

//----------------------------------------------------------------------------------------------------
// Event handlers
//----------------------------------------------------------------------------------------------------
var mouseX = mouseY = 0;
document.onmousemove = getMouseXY;

//-------------------------------------------------------------
/*
  var http_request = false;
   function makeRequest(url, parameters) {
      http_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {
             // set type accordingly to anticipated content type
            //http_request.overrideMimeType('text/xml');
            http_request.overrideMimeType('text/html; charset=Windows-1250');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }
      http_request.onreadystatechange = alertContents;
      http_request.open('GET', url + parameters, true);
      http_request.send(null);
      
   }

   function alertContents() {

         if (http_request.readyState == 4 && http_request.status == 200) {
            //alert(http_request.responseText);
            result = http_request.responseText;
            document.getElementById('myspan').innerHTML = result; 
         }// else {
          //  alert('There was a problem with the request.');
         //}
    
   }
   
   window.setInterval('makeRequest("includes/chat_nacti.php", "")', 10 * 1000); //tady se nastaví interval ve kterém se bude reloadovat stránka... 1000 = 1 sekunda
   makeRequest('includes/chat_nacti.php', '');
   */