Question

Here are the two code snippets that are part of my form

//checkbox

<input type="checkbox" style="margin-right:3px">I confirm that the details on this form are correct.

//submit button

<input type="image" src="images/submit-btn.png" border="0" >  

now my question is, how to enable disable the submit button using the checkbox , via jquery ?

Answer 1

try this

$(':checkbox').change(function(){
    $('input[type="image"]').attr("disabled", !$(this).attr('checked'));
});

$('input[type="image"]').click(function(){
alert("123");
});

EDIT:

<input type="image" src="images/submit-btn.png" border="0" disabled="disabled"/>

fiddle example: http://jsfiddle.net/hKAE5/