var timeout=1500;
var tactive=0;
var twhat="";
var timerID = null
var swhat="";

DOM = (document.getElementById) ? 1 : 0;
NS4 = (document.layers) ? 1 : 0;
Konqueror = (navigator.userAgent.indexOf("Konqueror") > -1) ? 1 : 0;
Konqueror21 = (navigator.userAgent.indexOf("Konqueror 2.1") > -1 || navigator.userAgent.indexOf("Konqueror/2.1") > -1) ? 1 : 0;
Konqueror22 = (navigator.userAgent.indexOf("Konqueror 2.2") > -1 || navigator.userAgent.indexOf("Konqueror/2.2") > -1) ? 1 : 0;
Konqueror2 = Konqueror21 || Konqueror22;
Opera5 = (navigator.userAgent.indexOf("Opera 5") > -1 || navigator.userAgent.indexOf("Opera/5") > -1) ? 1 : 0;
Opera6 = (navigator.userAgent.indexOf("Opera 6") > -1 || navigator.userAgent.indexOf("Opera/6") > -1) ? 1 : 0;
Opera = Opera5 || Opera6;
IE = (document.all) ? 1 : 0;
IE4 = IE && !DOM;

function getoffsetleft(layer) {
	var value = 0;
	if (DOM) {
		object = document.getElementById(layer);
		value = object.offsetLeft;
//alert (object.tagName + " --- " + object.offsetLeft);
		while (object.tagName != "BODY" && object.offsetParent) {
			object = object.offsetParent;
//alert (object.tagName + " --- " + object.offsetLeft);
			value += object.offsetLeft;
		}
	} else if (NS4) {
		value = document.layers[layer].pageX;
	} else {	// IE4 IS SIMPLY A BASTARD !!!
		if (document.all["IE4" + layer]) {
			layer = "IE4" + layer;
		}
		object = document.all[layer];
		value = object.offsetLeft;
		while (object.tagName != "BODY") {
			object = object.offsetParent;
			value += object.offsetLeft;
		}
	}
	return (value);
} 

function getoffsettop(layer) {
	var value = 0;
	if (DOM) {
		object = document.getElementById(layer);
		value = object.offsetTop;
		while (object.tagName != "BODY" && object.offsetParent) {
			object = object.offsetParent;
			value += object.offsetTop;
		}
	} else if (NS4) {
		value = document.layers[layer].pageY;
	} else {	// IE4 IS SIMPLY A BASTARD !!!
		if (document.all["IE4" + layer]) {
			layer = "IE4" + layer;
		}
		object = document.all[layer];
		value = object.offsetTop;
		while (object.tagName != "BODY") {
			object = object.offsetParent;
			value += object.offsetTop;
		}
	}
	return (value);
} 

function MM_openBrWindow(URL,windows,features) { 
window.open(URL, windows, features);
};

function MM_findObj(n, d) { //v3.0
 object = document.getElementById(n);
 if (object) {return(object);};
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); return x;
}

function MM_showHideLayers() { 
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }
}

function Hide() {
	MM_showHideLayers(twhat,'','hide');
	clearTimeout(timerID);
	tactive=0;
	twhat="";
};

function StopTimeout(what) {
	what="div"+what;
	if (what!=twhat) {
		Hide();
	};
	clearTimeout(timerID);
	tactive=0;
	twhat="";
};

function StartTimeout(what) {
	what="div"+what;
	if (tactive==1 && twhat!=what) {
		Hide();
	};
	tactive=1;
	if (twhat!=what) {
		twhat=what;
	};
	timerID=setTimeout("Hide()",timeout);
};

function SetRelativePosition(theSource,theTarget,ofsX,ofsY) {
	layerObj2 = (document.getElementById)?document.getElementById(theTarget):MM_findObj(theTarget);

	if (layerObj2!=null) {
		layerObj2 = (layerObj2.style)?layerObj2.style:layerObj2;
		layerObj2.left = getoffsetleft(theSource)+ofsX;
		layerObj2.top = getoffsettop(theSource)+ofsY;
	}
};

// SKRIPTY PRO MENU

var menuActive = 'noName';
var menuDirection = 'bottom';
var menuIniWidth = 0;
var menuIniHeight = 0;
var menuSlideVal = 0;
var menuStep = 5;
var menuTimeStep = 10;

function slideMenu() {
var layer = document.getElementById(menuActive);  //get path to layer depending on browser executing this code
	if(NS4){
		if(layer.clip.left > 0){
		
		if (menuDirection == 'left') {layer.clip.left -= menuStep;};
		if (menuDirection == 'right') {layer.clip.right += menuStep;};
		if (menuDirection == 'top') {layer.clip.top -= menuStep;};
		if (menuDirection == 'bottom') {layer.clip.bottom += menuStep;};
		setTimeout("slideMenu()",menuTimeStep)
		}
	}
	else {
		oldVal = menuSlideVal;
		if (menuDirection == 'left') {
			menuSlideVal -= menuStep;
			if (menuSlideVal < 0) {menuSlideVal = 0;};
			iniClip = "rect(" + 0 + "px " + menuIniWidth + "px " + menuIniHeight + "px " + menuSlideVal + "px)";
			};
		if (menuDirection == 'right') {
			menuSlideVal += menuStep;
			if (menuSlideVal > menuIniWidth) {menuSlideVal = menuIniWidth;};
			iniClip = "rect(" + 0 + "px " + menuSlideVal + "px " + menuIniHeight + "px " + 0 + "px)";
			};
		if (menuDirection == 'top') {
			menuSlideVal -= menuStep;
			if (menuSlideVal < 0) {menuSlideVal = 0;};
			iniClip = "rect(" + menuSlideVal + "px " + menuIniWidth + "px " + menuIniHeight + "px " + 0 + "px)";
			};
		if (menuDirection == 'bottom') {
			menuSlideVal += menuStep;
			if (menuSlideVal > menuIniHeight) {menuSlideVal = menuIniHeight;};
			iniClip = "rect(" + 0 + "px " + menuIniWidth + "px " + menuSlideVal + "px " + 0 + "px)";
			};
		layer.style.clip = iniClip;
		if (oldVal != menuSlideVal) {
			setTimeout("slideMenu()",menuTimeStep)
		};
	};
};

function shMenu(divID) {
	if (NS4) {
		menuIniHeight = parseInt(document[divID].document.height);
		menuIniWidth = parseInt(document[divID].document.height);
	} else {
		menuIniHeight = parseInt(document.all[divID].scrollHeight);
		menuIniWidth = parseInt(document.all[divID].scrollWidth);
	};
	if (menuDirection == 'left') {iniClip = "rect(" + 0 + "px " + menuIniWidth + "px " + menuIniHeight + "px " + menuIniWidth + "px)"; iniVal = menuIniWidth;};
	if (menuDirection == 'right') {iniClip = "rect(" + 0 + "px " + 0 + "px " + menuIniHeight + "px " + 0 + "px)"; iniVal = 0;};
	if (menuDirection == 'top') {iniClip = "rect(" + menuIniHeight + "px " + menuIniWidth + "px " + menuIniHeight + "px " + 0 + "px)"; iniVal = menuIniHeight;};
	if (menuDirection == 'bottom') {iniClip = "rect(" + 0 + "px " + menuIniWidth + "px " + 0 + "px " + 0 + "px)"; iniVal = 0;};
	document.getElementById(divID).style.clip = iniClip;
	MM_showHideLayers(divID,'','show');
	menuSlideVal = iniVal;
	menuActive = divID;
	slideMenu();
	return (true);
};

function StartMenu(what) {
	if (MM_findObj('div' + what) != null) {
		SetRelativePosition('sub' + what, 'div' + what,0,20);
		what='div' + what;
		if (twhat != what) {
			MM_showHideLayers(twhat,'','hide');
		};
		twhat=what;
	//	MM_showHideLayers(what,'','show');
		shMenu(what);
		clearTimeout(timerID);
		tactive=0;
	};
};

function trim(str) {
  return str.replace(/^\s*|\s*$/g,"");
} 

function submitObjServ() {
  ok = true;
  for (i=0; i<(required.length); i++) {
    var tmp = document.getElementById(required[i]);
    if (trim(tmp.value) == '') {
      ok = false;
      tmp.style.backgroundColor = '#FFD491';
    } else {
      tmp.style.backgroundColor = '#FFFFFF';
    };
  };
  if (!ok) {
    alert('Formulář nelze odeslat, chybějící hodnoty byly zvýrazněny.');
  };
  return(ok);
  //return(false);
}

function showmap(Nr) {
  document.getElementById('map' + Nr).style.display = 'block';
}

function hidemap(Nr) {
  document.getElementById('map' + Nr).style.display = 'none';
}