arq.js

Your code:

var spinid = /arqball_([0-9a-z]*)/.exec("products/arqball_slv34stbg8zp.jpg");
console.log(spinid[1]);
$(document).ready(function(){
  $(".main-image").append("<div id='spinBox' style='position:absolute; top:0px; width:408px; height:408px; z-index:-10;'><iframe src="https://spins0.arqsin.com/iframe.html?spin="+spinid[1]+"&is=-0.16" width="408" height="408" scrolling="no" frameborder="0"></iframe></div>");
});

Try instead:

var spinid = /arqball_([0-9a-z]*)/.exec("products/arqball_slv34stbg8zp.jpg");
console.log(spinid[1]);
$(document).ready(function(){
  $(".main-image").append("<div id='spinBox' style='position:absolute; top:0px; width:408px; height:408px; z-index:-10;'><iframe src='https://spins0.arqsin.com/iframe.html?spin="+spinid[1]+"&is=-0.16' width='408' height='408' scrolling='no' frameborder='0'></iframe></div>");
});