function ChangeReduc(directionBack) {
	var cboReduc = document.getElementById('cboReduc');
	var lblReduc = document.getElementById('lblReduc');
	if (directionBack) {
		cboReduc.style.display = 'none';
		lblReduc.style.display = 'block';
	} else {
		cboReduc.style.display = 'block';
		lblReduc.style.display = 'none';
		cboReduc.focus();
	}
}

function ReducKeyPress(e) {
	if (! document.all) return;		//pouze pro IE
	if (e.keyCode == 27 || e.keyCode == 13) ChangeReduc(true);
}

function SetDefaultFocus() {
	var oMenuTable = document.getElementById('MenuTable');
	oMenuTable.style.visibility = "hidden";
	
	if (focusDisabled) {return;}
	if (SetFocus(itemToSetFocus)) {return;}
	if (SetFocus('txtTo')) {return;}
	if (SetFocus('txtValidFrom')) {return;}
}

function SetFocus(itemName) {
	var item = document.getElementById(itemName);
	if (!item || item.disabled) {return false;}
	if (item.select) {item.select()};
	item.focus();
	return true;
}