/* ####################### begins list of images to be used ####################### */ currentIndx=0; RandomPhoto=new Array(); RandomPhoto[0]='/nigms.nih.gov/Images/banner_collage1.jpg'; RandomPhoto[1]='/nigms.nih.gov/Images/banner_collage2.jpg'; RandomPhoto[2]='/nigms.nih.gov/Images/banner_collage3.jpg'; RandomPhoto[3]='/nigms.nih.gov/Images/banner_collage4.jpg'; RandomPhoto[4]='/nigms.nih.gov/Images/banner_collage5.jpg'; /* ####################### now we preload the images ####################### */ imagesPreloaded = new Array(5) for (var i = 0; i < RandomPhoto.length ; i++) { imagesPreloaded[i] = new Image(216,174) imagesPreloaded[i].src=RandomPhoto[i] } /* ####################### this function loads a random image ####################### */ function randomImage() { var alt = ["NIGMS banner including collage of images"]; currentIndx=Math.round(Math.random()*4) document.theImage.src=imagesPreloaded[currentIndx].src document.theImage.alt = alt; }