jQuery Submit Form
HTML
<form id='form_1' action='http://google.com' method="get">
<input name='name' type='text' />
<input name='family' type='text' />
<input type ='button' id='btn' value='Are u sure?' />
</form>
JavaScript
$("#btn").click(function(){
var answer=confirm("Are you sure you want to submit this?");
if(answer){
$("#form_1").submit();
}
});