function displayNone (loop) {
	if (!document.getElementById("name_cal")) return true;
	var anzahl = 10;
	var arr = new Array(  "name_cal", "name_02","name_03", "name_04", "name_05", "name_06", "name_07", "name_08", "name_09", "name_10" );
	for (var i=0; i < loop; i++) document.getElementById(arr[i]).style.display = '';
	for (var i=loop; i <= anzahl; i++) document.getElementById(arr[i]).style.display = 'none';
}

function shownameinput(dropdown){
	document.body.focus( );
	var myindex = dropdown.selectedIndex;
	if (myindex == 0) displayNone(myindex);
	else displayNone(myindex+1);
}

window.onload = function() {
	displayNone(0);
};