function changeNumberOfAdults() {

	var sel = document.getElementById("selNumberOfAdults");
	var tbl = document.getElementById("tblAdults");
	
	var n = parseInt( sel.value );
	
	var tr, td;
	
	var numrows = tbl.rows.length;

	for ( var i = 0 ; i < numrows ; i++ )
	{
		tbl.deleteRow(0);
	}

	for ( var i = 0 ; i < n ; i++ )
	{
		tr = tbl.insertRow(-1);
		td = tr.insertCell(-1);
		td.innerHTML = "Adult " + (i + 1) + " Name";

		td = tr.insertCell(-1);
		td.innerHTML = "<input type=\"text\" name=\"adult_name_" + (i + 1) + "\" />";

	}

}

function changeNumberOfChildren() {

	var sel = document.getElementById("selNumberOfChildren");
	var tbl = document.getElementById("tblChildren");
	
	var n = parseInt( sel.value );
	
	var tr, td;
	
	var numrows = tbl.rows.length;

	for ( var i = 0 ; i < numrows ; i++ )
	{
		tbl.deleteRow(0);
	}

	for ( var i = 0 ; i < n ; i++ )
	{
		tr = tbl.insertRow(-1);
		td = tr.insertCell(-1);
		td.innerHTML = "Child " + (i + 1) + " Name";

		td = tr.insertCell(-1);
		td.innerHTML = "<input type=\"text\" name=\"child_name_" + (i + 1) + "\" />";

		td = tr.insertCell(-1);
		td.innerHTML = "Age";

		td = tr.insertCell(-1);
		td.innerHTML = "<input type=\"text\" name=\"child_age_" + (i + 1) + "\" size=\"3\" maxlength=\"2\" />";

	}

}