A simple example of Jquery operating radio_jquery

$(function(){
$('#tijiao').click(function(){
if ($ ("input:[name=study]:radio:checked").length == 0){
alert("Please select the knowledge you want to learn");
return false;
}
var study = $("input:[name=study]:radio:checked").val();
alert("Thank you! You selected " study);
})
$ ("#set_jqeury_study").click(function(){
var $button = $(this);
$("input:[name=study]:radio").each(function(){
if (this.value == $button.attr('title')){
this.checked=true;
}
})
})
$("# view_input_text").click(function(){
alert($("input[name=study]:text").val());
})
})