var calendar1; /*must be declared in global scope*/

window.onload = function() {
	// event dates initialisation
	try {
		calendar1 = new Epoch('cal1','popup',document.getElementById('nr_trial_end_dttm'),false);
	} catch (e) {
	}
	hideOptions();
}

function hideOptions() {

	try {
		if(document.forms[0].nr_channels_all_enable.checked == true) { 
			document.forms[0].newsChannelsFilter.style.display = "none";
			document.forms[0].freetextPhrases.style.display = "none";
			document.forms[0].newsChannelsOpt4.style.display = "none";
		} else {
			document.forms[0].newsChannelsFilter.style.display = "block";
			document.forms[0].freetextPhrases.style.display = "block";	
			document.forms[0].newsChannelsOpt4.style.display = "block";
		}	
	} catch (e) {}
}