Browser Resize

Browser Resize

Hi-

I am using this code that essentially has a fullscreen div, when you click the button, another fullscreen div slides in.
  1.  $(document).ready(function() {

          $("a#controlbtn").click(function(e) {
          
            e.preventDefault();
            
            var slidepx=$("div#linkblock").width();
                
            if ( !$("div#maincontent").is(':animated') ) {
        
                if (parseInt($("div#maincontent").css('left'), 10) < slidepx) {

                     $(this).removeClass('close').html('Hide your stuffs');

                      lleft = "+=" + slidepx;

                } else {

                     $(this).addClass('close').html('Show your stuffs');

                      lleft = "-=" + slidepx;
                  

                }
            
                $("div#maincontent").animate({
                    left: lleft
                  }, {
                        duration: 'slow',
                        easing: 'easeOutQuint'
                    });
            
            
            }


          });

        });






































My question is:

Since the width of the div is determined on the page load of div#linkblock, is there a way when the window is re-sized to grab the new value?