在悬停时显示php / mysql中的控件

I have below radio button on my web,

<input id='element_1_1' name='element_1' class='element radio' type='radio' value='1' />
<label class='choice' for='element_1_1'>2!</label>
<input id='element_1_2' name='element_1' class='element radio' type='radio' value='2' />
<label class='choice' for='element_1_2'> 1 </label>

When user is between the option, I want a check box to appear or a radio button using which user can select 1.5, the radio button should not appear usually only on hover, any ideas how to do it. I am guessing javascript is involved but all results on SO have jQuery in them which I have no idea about

You can do this by adding display: none to the styling of the individual radio button and then manipulating it with jQuery's .hover() and .css() functions.

Little example:

Button:

<input id='radioButton' name='radioButton' style='display: none' type='radio' value='1' />
<label class='choice' for='radioButton'>1</label>

jQuery stuff:

$('#radioButton').hover(function() {
  // blah - show
  $('#radioButton').css('display', 'block')
}, function() {
  // blah - hide
  $('#radioButton').css('display', 'none')
});