<!-- 
var myc1,myc2,myc3,mycol1,mycol2,mycol3,mycol4,mycol5;
var no = 20; // STAR number　１画面に出る画像の枚数
var speed = 50;
var g1=10;//透明度,中央
var g2=100;//透明度,外側
var xpp0,ypp0;
var dx, xp, yp;    // coordinate and position variables
var am, stx, sty;  // amplitude and step variables
var i, doc_width, doc_height;
if(document.layers){document.captureEvents(Event.mousemove);}
window.document.onmousemove=moveImg1;
function moveImg1(){
xpp0=document.body.scrollLeft+event.clientX-5;
ypp0=document.body.scrollTop+event.clientY-7;
}

function star(){
doc_width =document.body.clientWidth;
doc_height =document.body.clientHeight;
dx = new Array();
xp = new Array();
yp = new Array();
am = new Array();
stx = new Array();
sty = new Array();

for (i = 1; i < (no+1); ++ i) {
myc1=100*Math.random();
myc2=100+100*Math.random();
myc3=256;
dx[i] = 0;                        // set coordinate variables
xp[i] = 60+Math.random()*(doc_width-50);  // set position variables
yp[i] = 30+Math.random()*(doc_height-10);
am[i] = Math.random()*20;         // set amplitude variables
stx[i] = 0.2 + Math.random()/10; // set step variables
sty[i] = 4 + Math.random();     // set step variables
document.all["dot"+i].filters["light"].Clear();
document.all["dot"+i].filters["light"].addAmbient(myc1,myc2,myc3,100);
document.all["dot"+i].filters["alpha"].opacity=g1;
document.all["dot"+i].filters["alpha"].finishOpacity=g2;
}
STAR_IE();
}
function STAR_IE() {
for (i = 1; i <( no+1); ++ i) {  // iterate for every dot
yp[i] -= sty[i];
if (yp[i] <30) {
xp[i] = xpp0;
yp[i] = ypp0;
stx[i] = 0.2 + Math.random()/10;
sty[i] = 4 + Math.random();
if(ypp0<30){document.all["dot"+i].style.display="none";}
else if(ypp0>=30){
document.all["dot"+i].style.display="block";}
myc1=100*Math.random();
myc2=100+100*Math.random();
myc3=256;
document.all["dot"+i].filters["light"].Clear();
document.all["dot"+i].filters["light"].addAmbient(myc1,myc2,myc3,100);
document.all["dot"+i].filters["alpha"].opacity=g1;
document.all["dot"+i].filters["alpha"].finishOpacity=g2;
}
dx[i] += stx[i];
document.all["dot"+i].style.pixelTop = yp[i];
document.all["dot"+i].style.pixelLeft =xp[i] + am[i]*Math.sin(dx[i]);
}
setTimeout("STAR_IE()", speed);
}

// End -->