function doShowElement(elemshow,elemhide) {
		document.getElementById(elemshow).style.display = 'block';
		document.getElementById(elemhide).style.display = 'none';
	}
	
	function doOpenWindow(Awindow) {
		window.open('/'+Awindow+'.php','tmpwin','left=100,top=100,width=400,height=500,toolbar=0,resizable=0,scrollbars=1');
	}
	
	function popup(image,w,h) {
		var wid = 650;
		var hei = 490;
		windowHandle = window.open ('/web/popup.php?img='+image+'&sirka='+w+'&vyska='+h,'popup','width='+wid+',height='+hei+',top=100,left=100,resizable=yes,scrollbars=yes');
		windowHandle.focus();
	}
	
	function ChangeImageOn(imageid) {
		document.getElementById(imageid).src = '/data/images_user/buttons/' + imageid + 'a.jpg'
	}
	function ChangeImageOff(imageid) {
		document.getElementById(imageid).src = '/data/images_user/buttons/' + imageid + '.jpg'
	}