function newImage(imgSrc)  {

 var imgName = new Image();
 imgName.src = imgSrc;

 return imgName;
}

function change( imgName, imgLocation )  {
  var e = document.getElementById(imgName);

  e.src = imgLocation;
  //document[imgName].src = imgLocation;
}

var preloadFlag = false;


function loadImages()  {
  if (document.images)  {
    who_are_we_over = newImage("../images/who_are_we_act.jpg");
    clients_we_serve_over = newImage("../images/clients_we_serve_act.jpg");
    what_we_do_over = newImage("../images/what_we_do.jpg");

    preloadFlag = true;
  }
}


function changeSection(name, nav, over)  {
  var imgName;
  var imgLocation = "../images/";

  imgName = name;
  imgLocation += nav;


  if(over == 1)  {
    imgLocation += "_act";
  }
  else  {
    imgLocation += "_off";
  }

  imgLocation += ".jpg";

  change(imgName, imgLocation);
}