var imgLinks = new Array();
imgLinks[imgLinks.length] = {src:"images/home/01", alt:"Mature couple reviews financial statement"};
imgLinks[imgLinks.length] = {src:"images/home/02", alt:"Young man smiling"};
imgLinks[imgLinks.length] = {src:"images/home/03", alt:"Male employee poses in his office"};
imgLinks[imgLinks.length] = {src:"images/home/04", alt:"Young female professional in office hallway"};

function getRandomImage() {
      var currIndex = Math.floor(Math.random() * (imgLinks.length)); 
   	  var output = '<img src="' + imgLinks[currIndex].src + '.jpg" alt="' + imgLinks[currIndex].alt + '" border="0" />';
  		return output;
}