// image place holders
myImage = new Array(5)
myImage[0] = "_data/images/slides/1_fans.gif"
myImage[1] = "_data/images/slides/2_masks.gif"
myImage[2] = "_data/images/slides/3_gloves.gif"
myImage[3] = "_data/images/slides/4_material.gif"
myImage[4] = "_data/images/slides/5_material_2.gif"

// random number generator
rand = Math.floor(Math.random() * myImage.length);

// output random image
document.write("<img src=" + myImage[rand] + ">"); 
//-->