华丽的悬浮

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<!–
function GoTop() {
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function GoTop_Call() {
 document.body.ondblclick = Top; 
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var Xpos = 0;
var Ypos = 0;
var Ygravity = 0.85;
var scrollPos = 0;
var oldScrollPos = 0;

function FloatMenu() {
docWidth = document.body.clientWidth; // Update document width
docHeight = document.body.clientHeight; // Update document height
oldScrollPos = scrollPos;
scrollPos = document.body.scrollTop; // Update scrollbar position

Xpos = 743;
//Xpos = (docWidth – floater.offsetWidth) – 10;
//Xpos = (docWidth / 2) + 410; //
Yboundary = ((scrollPos + docHeight) – floater.offsetHeight) – 15; //

if (floater.offsetTop < Yboundary – 1) // Object is behind boundary
Ypos += 2;

if (floater.offsetTop > Yboundary + 1) // Object is past boundary
Ypos -= 1;

Ypos *= Ygravity; // Slow object down

floater.style.pixelLeft = Xpos;
floater.style.pixelTop += Ypos; // Make object bounce
}

window.setInterval("FloatMenu()", 1); /

//–>
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    <DIV id=floater
    style="Z-INDEX: 1; LEFT: 743px; VISIBILITY: visible; WIDTH: 33px; POSITION: absolute; TOP: 470px; HEIGHT: 13px"><A
    onfocus=this.blur() href="javascript:GoTop();"><IMG height=18
    src="_top.gif" width=36 border=0></A></DIV>