function checkSpec(value) {
	if (value == '') { 
		alert('Proszę wybrać specjalizację z listy!');
		return false;
	} else
		return true;
}

function checkDoc(value) {
	if (value == '') { 
		alert('Proszę wybrać lekarza z listy!');
		return false;
	} else
		return true;
}

function KategorieCennika(id) {
	var kat_layer = xbGetElementById('hkcen'+id);
	var but_kat = xbGetElementById('hkcenbut'+id);
	var vis = kat_layer.style.display;

	if (vis != 'block') {
		kat_layer.style.display = 'block';
		but_kat.src='cm_images/kat_zwin.png';
	} else {
		kat_layer.style.display = 'none';
		but_kat.src='cm_images/kat_rozwin.png';
	}
  
	var wys = getObjectHeight(xbGetElementById('mainTextArea'));			
	if (wys <= 400) {
		xbGetElementById('lineup0').style.visibility = 'hidden';
		xbGetElementById('linedown0').style.visibility = 'hidden';
		xbGetElementById('scrollWrapper0').style.visibility = 'hidden';
	} else {
		xbGetElementById('lineup0').style.visibility = 'visible';
		xbGetElementById('linedown0').style.visibility = 'visible';
		xbGetElementById('scrollWrapper0').style.visibility = 'visible';
	}
	scrollBars[0].contentScrollHeight = getObjectHeight(xbGetElementById('mainTextArea'));
	xbGetElementById('mainTextArea').style.top = 0+'px';
	scrollBars[0].contentHeight = Math.abs(parseInt(xbGetElementById('outerWrapper').style.top));
	scrollBars[0].thumbLength = 27;
	updateThumb(0);
}