Answers for "jquery onclick on class"

class onclick jqery

$(document).on('click','.addproduct', function(){

    //your code here

 });

css click event jquery

$('h1').click(function () {
        $(this).css('color', 'blue')
    });

class onclick jqery

$(".addproduct").unbind().click(function(){
   //do something 
});