var imgNames = ['orvs_dq_cloverport2-low.jpg', 'ORVS_im4.jpg', 
'orvs_dq_cloverport2-64d.gif'];
var imgObjects = [];

for (var i = 0; i < imgNames.length; i++)
{
  imgObjects[i] = new Image();
  imgObjects[i].src = imgNames[i] ;

  }