function image() 
{
};

image = new image();
number = 0;

image[number++] = "002";
image[number++] = "003";
image[number++] = "004";
image[number++] = "005";
image[number++] = "006";

i = Math.floor(Math.random() * number);

document.write('<a href="#" onClick="openNoScrollWindow(\'images/\' + image[i] + \'.jpg\', \'740\', \'530\')"><img src="images/' + image[i] + '_thumb' + '.jpg" border=0 alt="Click to view a larger version of this image."></a>');