jquery - Javascript login/signup callback functions -

i'm working on magento extension,all based on javascript , need integrate widget wordpress. have event.js view /widgets

/* links events */     var eventlinks = function() {         var $loginbtn = my.html.find('.att-login'),             $signupbtn = my.html.find('.att-signup');          /* login btn event */         $loginbtn.on('click', function() {             bynd.widgets.log('[info]', '[landing page] - login button clicked');              bynd.auth.login(function() {                 window.location.href = 'collections.html?page=my_collections';             });              return false;         });          /* signup btn event */         $signupbtn.on('click', function() {             bynd.widgets.log('[info]', '[landing page] - signup button clicked');              bynd.auth.signup(function() {                 window.location.href = 'collections.html?page=my_collections';             });              return false;         });     }, 

and need make callbacks login/signup functions login box(already made in wp) pops up

any help?

i suppose function looking (callback signup) here:

 bynd.auth.signup(function() {             // replace line code             window.location.href = 'collections.html?page=my_collections';         }); 

if show page popup use window, or iframe...