$(document).ready(function(){

  // opens external links in a new window, and adds class "external" for styling external links.
  $("a[href*='http://']:not([href*='"+location.hostname+"']),[href*='https://']:not([href*='"+location.hostname+"'])")
    .addClass("external")
    .attr("target","_blank");

  // opens colorbox through [rel=lightbox] 
  $("a[rel='lightbox']").colorbox();

  // opens colorbox through a.class="lightbox"
  $("a.lightbox").colorbox();
  
  $("a.lightboxHtml").colorbox({width:"500px", height:"80%", iframe:true});

  // opens download links in a new window, and adds class to specific file types 
  $("a[href*='.pdf']")
      .addClass("file")
      .addClass("pdf")
      .attr("target","_blank");

  $("a[href*='.xls'],[href*='.xlsx'][href*='.csv']")
      .addClass("file")
      .addClass("xls")
      .attr("target","_blank");

  $("a[href*='.doc'],[href*='.docx']")
      .addClass("file")
      .addClass("doc")
      .attr("target","_blank");

  $("a[href*='.ppt'],[href*='.pptx']")
      .addClass("file")
      .addClass("ppt")
      .attr("target","_blank");

});