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 preload rollover state images ****
 //****Example: aboutus_over = newImage( "images/aboutus-over.gif" );
 min1 = newImage("..images/mineral_01o.gif");
 min2 = newImage("..images/mineral_02o.gif");
 min3 = newImage("..images/mineral_03o.gif");
 min4 = newImage("..images/mineral_04o.gif");
 
 
 
 preloadFlag = true;
 }
}