var Reference = {
	
	init : function() {
		document.getElementById('tlZobraz').style.display='none';
	},
	
	changeSelect : function(select,url) {
		var value = select.options[select.selectedIndex].value;
		if (value == '') {
			window.location = url;
		} else {
			window.location = value;
		}
	}
	
}

Reference.init();