javascript - How do i get the width and height after using appendTo -


basically, have parent div named 'wrapper' , adding other div's: divimg, counter , caption. centering 'wrapper'.

appending divs 'wrapper' works ok. i'm stuck on how center 'wrapper'. reason, cannot width , height of 'wrapper' after using appendto. it's same , height.

how width , height after using appendto, see code below:

function appendimage() { var wrapperwidth; var wrapperheight; var windowwidth = $(window).width(); var windowheight = $(window).height();  var wrapper = $("#modal-wrapper");  var divimg = $("<div></div>")     .hide()     .attr("id", "container-img")     .appendto(wrapper);  var counter = $("<p></p>")     .hide()     .addclass("slideshowcounter")     .text(text goes here...)     .appendto(wrapper);  var caption = $("<p></p>")     .hide()     .addclass("imgcaption")     .text(caption goes here...)     .appendto(wrapper);  // preload image var img = new image();     img.src = src;     img.onload = function() {         // set image width / height         $(this).width(this.width).height(this.height).appendto(divimg);          wrapperwidth = wrapper.outerwidth();          // error, same width         alert(wrapperwidth);          wrapperheight = wrapper.outerheight();          wrapper.css({             width: wrapperwidth,             height: wrapperheight,             left: ((windowwidth - wrapperwidth) / 2 + $(window).scrollleft()),             top: ((windowheight - wrapperwidth) / 2 + $(window).scrolltop())         }).show( "slow", function() {             // fadein image , other             divimg.fadein(800);         });     } }


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