function newImage( imgSrc ){
 
 var imgName = new Image();
 imgName.src = imgSrc;
 
 return imgName;

}

function active( imgName )
{
 if ( document.images && (preloadFlag == true))
 {
  if ( level == 1 )
  {
   document[imgName].src = "images/mainpic-" + imgName + "-over.jpg" ;
  }
  else if (level == 2)
  {
   document[imgName].src = "../images/mainpic-" + imgName + "-over.jpg" ;
  }
  else if (level == 3)
  {
   document[imgName].src = "../../images/mainpic-" + imgName + "-over.jpg" ;
  }
 }
}

function inactive( imgName )
{
 if ( document.images && (preloadFlag == true))
 {
  if ( level == 1 )
  {
   document[imgName].src = "images/mainpic-" + imgName + ".jpg" ;
  }
  else if ( level == 2 )
  {
   document[imgName].src = "../images/mainpic-" + imgName + ".jpg" ;
  }
 }
}

var preloadFlag = false;
function loadImages()
{
 if (document.images)
 {
 
  //****Edit this list to include vertical rollover images ****
  //****Example: aboutus_over = newImage( "images/menu_aboutus_over.jpg" );
  homeOver = newImage("images/mainpic-home-over.jpg");
  aboutOver = newImage("images/mainpic2-over.jpg");
  overviewOver = newImage("images/mainpic3-over.jpg");
  pressOver = newImage("images/mainpic4-over.jpg");
  careersOver = newImage("images/mainpic5-over.jpg");
  contactOver = newImage("images/mainpic6-over.jpg");
 
  preloadFlag = true;
 }
}