Jenkins Folder Icon Modificator

folderIconModificator.js

//Put in $JENKINS_HOME/userContent/FolderIconModificator.js
//Using the Simple Theme Plugin you then add /userContent/FolderIconModificator.js as a JavaScript URL
(function(){
  setTimeout(function(){
    jQuery('.job-status-').map(function(i, job){
       return job.id;
    }.bind(this)).each(function(i, imageUrl){
      jQuery.ajax({
            type: "HEAD",
            async: true,
            url: '/userContent/' + imageUrl + '.png',
            success: function(message){
              var iconElement = jQuery('#' + imageUrl + ' > td:nth-child(1) > img')[0];
              iconElement.src = '/userContent/' + imageUrl + '.png';
              iconElement.removeClassName("icon-folder");
              if(iconElement.style.height.indexOf('32px') != -1){
                iconElement.setStyle("height: 40px; width: 40px; padding: 0 0 0 2px; margin 8px;")
              }else{
                iconElement.setStyle("padding: 0 0 0 2px; margin 8px;")
              }
            }.bind(this)
        });
    }.bind(this));
  }, 300);
})();