Graham Check signature

signature.js

//Hidden field
formyoula.form_fields['4556-bd6d-675d'].on("change",function(){
  //Get img url - from hidden field
  var img_url = formyoula.form_fields['4556-bd6d-675d'].get('value');
  //check if there is URL
  if(img_url.match("http")) {
    //Hide the signature element
    $("#component-30c1-3ddb-39d4").hide();
    //Set Img URL to Formyoula HTML element - This is an HTML element
    $("#component-8d9a-5809-dd75").html(img_url);
  } else {
    //If not URL then remove img tag from HTML element.
    $("#component-8d9a-5809-dd75 img").remove();
    //And show the signature element
    $("#component-30c1-3ddb-39d4").show();
  }
})