function preload( prefix, imgs, ext ) {
  for( i=0; i<imgs.length; i++ ) {
    img = prefix + imgs[i];
    eval( img + '_on  = new Image();' );
    eval( img + '_on.src = \'../../artistmicrosite/REPVA/imgs/'  + prefix + imgs[i] + '_on.' + ext + '\';' );
    eval( img + '_off  = new Image();' );
    eval( img + '_off.src = \'../../artistmicrosite/REPVA/imgs/' + prefix + imgs[i] + '_off.' + ext + '\';' );

  }
}   

function mover( name ) {
    eval( "document.images." + name + ".src = " + name + "_on.src" );
}  

function mout( name )
{
    eval( "document.images." + name + ".src = " + name + "_off.src" );
}