var ajej = document.all && (navigator.appName.indexOf("Internet Explorer") >= 0) ? 1 : 0;
var necky = navigator.appName.indexOf("Netscape") >= 0 ? 1 : 0;
//ajej = true;

// #############################################################################
function preloadImage(url) {
	 preloadedImage = new Image()
	 preloadedImage.src = url; 
}

function changeElementHTML(divid,code) {
	element = document.getElementById(divid);
	element.innerHTML = code;
}

function changeElementBg(divid,code) {
	element = document.getElementById(divid);
	element.style.background = code;
}

function hideElement(divid) {
	element = document.getElementById(divid);
	element.style.display = 'none';
}

function showElement(divid) {
	element = document.getElementById(divid);
	element.style.display = 'block';
}

function changeImageUrl(imagename,url) {
	document.images[imagename].src = url;
}
// #############################################################################

//var contexthelp = document.getElementById('contexthelp');

var loading = '<ul><li>Nahrávám menu fotografie...</li></ul>';
/*
<div id="contexthelp" style="position: absolute; visibility: hidden;">
</div>
*/
// funkce na sledovani kurzoru
//var started = true;
if (document.layers)
  document.captureEvents(Event.MOUSEDOWN);
//document.onmousedown = eventmouse;

		 
function showToolbar(evt,photoid,section) {

	// lepsi cesta na ukazani na contexthelp
	var cursor = 
	 document.layers ? document.contexthelp :
	 document.all ? document.all.contexthelp :
	 document.getElementById ? document.getElementById('contexthelp') : null;

	if (document.layers)
		cursor.visibility = 'show';
	else 
		cursor.style.visibility = 'visible';
	
	cursor.innerHTML = loading;
	runScript(photoid,section);
	
	if (document.layers) {
		cursor.left = evt.pageX;
		cursor.top = evt.pageY;
		//alert('document.layers X:'+evt.pageX+' Y:'+evt.pageY);
	}
	else if (document.all) {
		cursor.style.pixelLeft = event.x;
		cursor.style.pixelTop = event.y;
		//alert('document.all X:'+event.x+' Y:'+event.y);
	}
	else if (document.getElementById) {
		cursor.style.left = evt.pageX + 'px';
		cursor.style.top = evt.pageY + 'px';
		//alert('document.getElementById X:'+evt.pageX+' Y:'+evt.pageY);
	}
	
	return false;
}  

function hideToolbar() {
	document.getElementById('contexthelp').style.visibility = 'hidden';
}

function fillToolbar(innerhtml) {
	var cursor = 
	  document.layers ? document.contexthelp :
	  document.all ? document.all.contexthelp :
	  document.getElementById ? document.getElementById('contexthelp') : null;
	cursor.innerHTML = innerhtml;
}

function runScript(photoid,section) {

    var hlavicka = document.getElementsByTagName('head')[0];
    var dataLoader = document.getElementById('scriptLoader');
    if(dataLoader) hlavicka.removeChild(dataLoader);
    script = document.createElement('script');
    script.id = 'scriptLoader';
    script.src = '/forum/imgtool.php?s='+sessionhash+'&attachmentid='+photoid+'&currentimgsection='+'&r='+Math.random();
    x = document.getElementsByTagName('head')[0];
    x.appendChild(script);

    return false;
}
/*
function clearData() {
    // v jednoduchem cyklu smazeme vsechny elementy v prvku vystup
    while(contexthelp.hasChildNodes()) contexthelp.removeChild(contexthelp.childNodes[0]);
    return false;
}
*/
function photoPopup(photoid) {
	window.open('/forum/image.php?action=popup&s='+sessionhash+'&attachmentid='+photoid,"fspopup","toolbar=no,location=no,menubar=no,scrollbars=yes,width=800,height=600,resizeable=yes,status=no")
}
function removePhoto(photoid) {
	input_box=confirm("Pokud si opravdu přeješ smazat tuto fotografii klikni OK.");
	if (input_box==true) {
		window.location = '/home/potw.php?s=$session[sessionhash]&action=delete&photoid='+photoid;
	}	
}