$(document).ready(function() {

ko.validation.init({ errorElementClass: 'has-error', insertMessages : true }); ko.validation.registerExtenders(); var dataUrl = { imgUrl : '/api/advertise/advertisepost' }, loopPictures = $(".loopPictures"), buttons = $(".buttons"), imgYS = loopPictures.find("img"), imgWidth = imgYS.css("width"), imgHeight = imgYS.css("height"), kick = buttons.find("span"); console.log(imgWidth); console.log(imgHeight);