/* the following 102 pictures were selected Wed Feb 1 09:27:35 2012 for using as the set of random pictures */
var usr_img = new Array ("
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");
// randompic(); // iff this should execute when this file is loaded
function randompic() {
/* to be called from HTML: */
/* This function randomly selects a picture from the above set. Math.floor() generates a random number from 0 to 1 to multiply the number of array items. Math.round() rounds the generated number to an integer index of a picture in the set. */
/* there has to be at least one picture link; to make sure that on any load of the page all pictures are unique ignore previously selected pictures which were set to null; */
if (usr_img.length >= 1) { // at least one picture has to be available
// initialize by randomly selecting a picture
// floor() returns a number rounded DOWNWARDS to the nearest integer
var random_index = Math.floor (Math.random() * (usr_img.length));
// validate this is a valid (non-null) random picture
ntries = 0; // set a limit for trying to find a valid (non-null) random picture
while (usr_img[random_index] == "" && ntries <= 10) {
random_index = Math.floor (Math.random() * (usr_img.length));
ntries++;
}
// to be here there is or is not a (non-null) random picture
if (usr_img[random_index] != "") { // print iff a valid picture found
document.write (usr_img[random_index]);
usr_img[random_index] = ""; // null for only this load of the web page
}
}
}