•HEIGHT: how tall the marquee is
•DIRECTION: which direction the marquee should scroll, up, down, left, right
•BEHAVIOR: what type of scrolling: scroll, slide(到头则停止), alternate(来回摆动)
•SCROLLDELAY: how long to delay between each jump, millisecond
•SCROLLAMOUNT: how far to jump
•LOOP: how many times to loop
•BGCOLOR: background color
•HSPACE: horizontal space around the marquee: 两边的空隙
•VSPACE: vertical space around the marquee : 上下的空隙