function confirmUrl(urlOk, text) {
		if(typeof text == 'undefined')
			text = 'Naozaj?';
		
		var ok = window.confirm(text);
		if(ok)
			document.location.href = urlOk;
	}
	
	function confirmUrl2(urlOk, text) {
		if(typeof text == 'undefined')
			text = 'Naozaj?';

		var ok = window.confirm(text);
		if(ok) {
			var ok2 = window.confirm("POZOR! Operácia je nevratná! Skutočne ju chcete vykonať?");
			if(ok2)
				document.location.href = urlOk;
		}
	}
	
	function clearField(fld) {
		if(!fld._cleared)
			fld.value = '';	
		fld._cleared = true;
	}
	
	function clearAllFields(frm) {
		var i, elements, e;
		elements = frm.elements;
		for(i = 0; i < elements.length; i++) {
			e = elements[i];
			if(e.type == 'text' || e.type == 'textarea')
				clearField(e);
		}
	}
	
	function updateForm(frm) {
		frm.__FORM_UPDATE_FORM.value=true;
		frm.submit();
	}
	
	function zoomImg(img) {
		/*if(img.width==133) {
			img.width=266; 
			img.height=200;
		}
		else {
			img.width=133;
			img.height=100;
		}*/
		if(img.className=='foto')
			img.className='fotoVelke'
		else img.className='foto';
		
	}