Класс onclick jqery
$(document).on('click','.addproduct', function(){
//your code here
});
Borma
$(document).on('click','.addproduct', function(){
//your code here
});
$(".yourButtonClass").on('click', function(event){
event.stopPropagation();
event.stopImmediatePropagation();
//(... rest of your JS code)
});
$(".addproduct").unbind().click(function(){
//do something
});