Background Change - Visible Script

visible-script.js

// jQuery isVisible script - bg color swap
var win = $(window);
var allMods = $(".featurette");

allMods.each(function(i, el) {
  var el = $(el);
  if (el.visible(false, true)) {
    //el.addClass("colorize"); 
  } 
});

win.scroll(function(event) {
  allMods.each(function(i, el) {
    var el = $(el);
    if (!el.visible(false,true)) {
      //el.css({ "background": "transparent"});
      //el.removeClass("colorize"); 
    }
    if (el.visible(false, true)) {
      //el.css({ "background" : "#863336" , "color" : "#000000" });
      //el.addClass("colorize");
    }    
  });
});