jquery change picture source
// https://codepen.io/kman/pen/dXjpoX // Stockphotos JS $(document).ready(function(){ var flag = 0; $("button#changeSize").click(function(){ if(flag == 0) { $("#dummyimage").attr("src","http://dummyimage.com/350x155/"); flag = 1; } else if(flag == 1) { $("#dummyimage").attr("src","http://dummyimage.com/450x255/"); flag = 0; } }); });