function newImage( imgSrc ){

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

 return imgName;

}

function change( imgName, imgLocation )
{
 document[imgName].src = imgLocation ;
}

var preloadFlag = false;
function loadImages()
{
 if (document.images)
 {
 //****Edit this list to include rollover state images ****
 //****Example: aboutus_over = newImage( "images/aboutus-over.gif" );
 btn1_over = newImage("img/btn1o.gif");
 btn2_over = newImage("img/btn2o.gif");
 btn3_over = newImage("img/btn3o.gif");
 btn4_over = newImage("img/btn4o.gif");
 btn5_over = newImage("img/btn5o.gif");
 btn6_over = newImage("img/btn6o.gif");
 btn7_over = newImage("img/btn7o.gif");


 preloadFlag = true;
 }
}