要完成此效果需要兩個步驟
第一步：把如下代碼加入到區(qū)域中
<script LANGUAGE="JavaScript">
ns4 = (document.layers)? true:false
ie4 = (document.all)? true:false
function showObject(obj) {
if (ns4) obj.visibility = "show"
else if (ie4) obj.visibility = "visible"
}
function hideObject(obj) {
if (ns4) obj.visibility = "hide"
else if (ie4) obj.visibility = "hidden"
}
function slideLogo(from, to) {
if (from < to) {
company.top = (from += 10);
setTimeout('slideLogo(' + from + ',' + to + ')', 20);
}
else initObjects();
}
function rotateObjects() {
for (var i = 0; i < pos.length; i++) {
pos[i] += inc; objects[i].visibility = 'visible';
objects[i].left = (r * Math.cos(pos[i])) + xoff
objects[i].top = (r * Math.sin(pos[i])) + yoff;
}
rotateTimer = setTimeout("rotateObjects()", 50);
}
function initObjects() {
objects = new Array(fly1, fly2, fly3, fly4);
pos = new Array();
pos[0] = 0;
for (var i = 1; i < objects.length; i++) {
pos[i] = parseFloat(pos[i - 1] + ((2 * pi) / objects.length));
}
rotateObjects();
}
/* Variables for rotating objects */
var objects;
var pos;
var r = 160; // radius
var xoff = 280; // x offset
var yoff = 170; // y offset
var pi = Math.PI; // get pi
var inc = pi / 180; // degrees per rotation cycle
var objects; // objects to be rotated
var pos; // position for objects
</script>
第二步：把如下代碼加入到區(qū)域中
<script LANGUAGE="JavaScript">
/* Simple version detection */
var isNS = (navigator.appName == "Netscape" && parseInt(navigator.appVersion) >= 4);
/* They can be used in place
of hidden and visible because on occasion Navigator has problems with the two */
var HIDDEN = (isNS) ? 'hide' : 'hidden';
var VISIBLE = (isNS) ? 'show' : 'visible';
/* Create shortcut variables for different absolutely positioned elements */
var fly1 = (isNS) ? document.fly1 : document.all.fly1.style;
var fly2 = (isNS) ? document.fly2 : document.all.fly2.style;
var fly3 = (isNS) ? document.fly3 : document.all.fly3.style;
var fly4 = (isNS) ? document.fly4 : document.all.fly4.style;
var company = (isNS) ? document.company : document.all.company.style;
var desc1 = (isNS) ? document.desc1 : document.all.desc1.style;
var desc2 = (isNS) ? document.desc2 : document.all.desc2.style;
var desc3 = (isNS) ? document.desc3 : document.all.desc3.style;
var desc4 = (isNS) ? document.desc4 : document.all.desc4.style;
/* Begin the sliding of the company logo */
slideLogo(0, 140);
</script>
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