on radio button change jquery

1$('input[type=radio][name=bedStatus]').change(function() {
2    if (this.value == 'allot') {
3        alert("Allot Thai Gayo Bhai");
4    }
5    else if (this.value == 'transfer') {
6        alert("Transfer Thai Gayo");
7    }
8});

1Say you had radio buttons like these, for example:
2
3<input type='radio' name='gender' value='Male'>
4<input type='radio' name='gender' value='Female'>
5  
6And you wanted to check the one with a value of "Male" onload if no radio is 
7checked:
8
9$(function() {
10    var $radios = $('input:radio[name=gender]');
11    if($radios.is(':checked') === false) {
12        $radios.filter('[value=Male]').prop('checked', true);
13    }
14});