Blinking and ChangingBlinking and Changing
Every half second, the script calls the function Blink(), which looks like this:
function Blink()
{
var cellRef = Rnd(64);
cells[cellRef].bgColor = (cells[cellRef].bgColor == "#ff0000") ? "#00ff00" : "#ff0000";
cells[cellRef].innerText = ""+Rnd(100);
if((++blinkCt % 10) == 0) {
if(++textIdx == 5)
textIdx = 0;
textCell.innerHTML = text[textIdx];
}
}
The cells[] array contains references to all the table cells
(<TD> elements) you see above; the text[] array contains
the message strings you see in the light blue square to the left of the red table.
By changing the innerText attribute of the small table cells, the script changes
the number in each cell. Changing the innerHTML attribute allows the addition of
HTML formatting tags in the text; using HTML tags with innerText will cause them
to display literally in the cell instead of formatting the text.
If you're looking at this in Netscape Navigator, then you're in trouble, because Netscape still doesn't support scripting of most HTML elements you might put into a page. For a way to accomodate some forms of changing messages, look at the The Amazing Kitty script.