function visibleMenu(menu) {
	var m = document.getElementById(menu);
	m.style.display = 'block';
	return true;
}

function hideMenu(menu) {
	var m = document.getElementById(menu);
	m.style.display = 'none';
	return true;
}

function showShadowBorder() {
	var height=0; //alert("aa "+document.getElementById('content').clientHeight+" bb "+ document.getElementById('rightMenu').clientHeight);
	var clientHeightContent = document.getElementById('content').clientHeight - 100;
	var clientHeightRightMenu = document.getElementById('rightMenu').clientHeight - 100;
	if(clientHeightContent > clientHeightRightMenu) {
		height = clientHeightContent;
	} else {
		height = clientHeightRightMenu;
	}
	var ldest = document.getElementById('leftColumn');
	var rdest = document.getElementById('rightColumn');
	ldest.style.height=height;
	rdest.style.height=height;
}

function confirmDownload(fileSize,manualName) {
	if(confirm("Stahovaný soubor má velikost "+fileSize+" MB")) {
		window.open(manualName, "_blank", "width=800,height=600");
	}
}

function getStatusBar(statusText) {
	window.status = statusText;
}