谁给我说下这个Flash的制作方法和脚本啊

<STYLE>.spanstyle {
COLOR: #0066ff; FONT-FAMILY: 宋体; FONT-SIZE: 9pt; FONT-WEIGHT: normal; POSITION: absolute; TOP: -50px; VISIBILITY: visible
}
</STYLE>
<SCRIPT language=javascript>
var message="酷云网络";
var x,y;
var step=12;
var flag=0;
message=message.split("");
var xpos=new Array();
for (i=0;i<=message.length-1;i++) {
xpos[i]=-50;
}
var ypos=new Array();
for (i=0;i<=message.length-1;i++) {
ypos[i]=-50;
}
function handlerMM(e) {
x = (document.layers) ? e.pageX : document.body.scrollLeft+event.clientX+10;
y = (document.layers) ? e.pageY : document.body.scrollTop+event.clientY;
flag=1;
}
function makesnake() {
i