Using Embedded script:    

Using onclick script:
Produce an alert box and open a new window with a given URL. /* onClick */

Using onmouseover script:
The alert box will open as the cursor crosses the text. /* onMouseOver */

Using onmouseout script:
The alert box will open as the cursor leaves the text. /* onMouseOut */

Using External script:
" clock"   "scrolling"

" today"