You can use a scripting language to pull the text for the marquee from a file. or you can use a little html trick:
have a page called marquee.html and make it a blank html page only containing your marquee. and call it inside of an iframe in all of the pages you want the marquee to be displayed on like this:
<iframe src="marquee.html" width="100" height="20"
frameborder="0"
allowtransparency="true"
scrolling="no"
></iframe>
have a page called marquee.html and make it a blank html page only containing your marquee. and call it inside of an iframe in all of the pages you want the marquee to be displayed on like this:
<iframe src="marquee.html" width="100" height="20"
frameborder="0"
allowtransparency="true"
scrolling="no"
></iframe>