function gt_showForm(id1, id2){
	$('#' + id1).hide("fast");
	$('#' + id2).show("fast");
}

function gt_filter(elem, mode, ilosc){
	var val = elem.value;

	if(mode == 'int'){
		elem.value = val.replace(/[^0-9]+/, '');
	}

	else if(mode == 'double'){
		//elem.value = elem.value.replace(',', '.');
		val = elem.value.replace(',', '.');
		if(val.length > 0){
			val = val.replace(/[^0-9\.]+/, '');
			matches = val.match(/^[0-9]+(\.[0-9]{0,2})?/);
			if(matches == null){
				elem.value = '';
			}
			else{
				elem.value = matches[0];
			}
		}
		//else{
		//	elem.value = parseFloat(val);
		//}
		if(elem.value == 'NaN') elem.value = '';
	}

	var cena = Number(elem.value) * ilosc;
	var c2 = cena % 1000;
	var c1 = (cena - c2) / 1000;
	if(c1 == 0) c1 = '';
	cena = c1 + ' ' + c2.toFixed(2);
	//cena = cena.replace('.', ',');
	$('#gt_cenaCalk').html(cena);
}

function gt_wyrownaj(e1, e2){
	var h1 = Number($(e1).attr('offsetHeight'));
	var h2 = Number($(e2).attr('offsetHeight'));

	var m = Math.max(h1, h2);
	var r;
	var h;

	// powiększamy h1
	if(h1 < m){
		r = m - h1;
		h = $(e1).height();
		$(e1).height( r + h - 2 );
	}
	else if(h2 < m){
		r = m - h2;
		h = $(e2).height();
		$(e2).height( r + h );
	}

	//alert($(e1).height());

	//alert(m);
	//$(e1).css('height', m + 'px');
	//$(e2).css('height', m + 'px');
}