radio button group html jquery

1<input type="radio" id="radio1" name="RadioGroup1" value="1" checked="true"/>
2<input type="radio" id="radio2" name="RadioGroup1" value="2" />
3<input type="radio" id="radio3" name="RadioGroup1" value="3" />
4
5
6//in your jquery
7var value = $("input[name=RadioGroup1]:checked").val();
8
9alert("The user selected; " + value);