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#3
放下2008-10-15 21:50
<div id=divMenu style=" left:10px; top:98px; visibility: visible; width: 51px; position: absolute; float:left" >内容<div>
<script language="JavaScript" >
var bNetscape4plus = (navigator.appName == "Netscape" && navigator.appVersion.substring(0,1) >= "4");
var bExplorer4plus = (navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.substring(0,1) >= "4");
function CheckUIElements()
{
var yMenuFrom, yMenuTo, yButtonFrom, yButtonTo, yOffset, timeoutNextCheck;
if ( bNetscape4plus ) {
yMenuFrom = document["divMenu"].top;
yMenuTo = top.pageYOffset + 150;
}
else if ( bExplorer4plus ) {
yMenuFrom = parseInt (divMenu.style.top, 10);
yMenuTo = document.body.scrollTop + 107;
}
timeoutNextCheck = 500;
if ( Math.abs (yButtonFrom - (yMenuTo + 152)) < 6 && yButtonTo < yButtonFrom ) {
setTimeout ("CheckUIElements()", timeoutNextCheck);
return;
}
if ( yButtonFrom != yButtonTo ) {
yOffset = Math.ceil( Math.abs( yButtonTo - yButtonFrom ) / 10 );
if ( yButtonTo < yButtonFrom )
yOffset = -yOffset;
if ( bNetscape4plus )
document["divLinkButton"].top += yOffset;
else if ( bExplorer4plus )
divLinkButton.style.top = parseInt (divLinkButton.style.top, 10) + yOffset;
timeoutNextCheck = 10;
}
if ( yMenuFrom != yMenuTo ) {
yOffset = Math.ceil( Math.abs( yMenuTo - yMenuFrom ) / 20 );
if ( yMenuTo < yMenuFrom )
yOffset = -yOffset;
if ( bNetscape4plus )
document["divMenu"].top += yOffset;
else if ( bExplorer4plus )
divMenu.style.top = parseInt (divMenu.style.top, 10) + yOffset;
timeoutNextCheck = 10;
}
setTimeout ("CheckUIElements()", timeoutNextCheck);
}
function OnLoad()
{
var y;
if ( top.frames.length )
if ( bNetscape4plus ) {
document["divMenu"].top = top.pageYOffset + 100;
document["divMenu"].visibility = "visible";
//document["divMenu"].visibility = "hidden";
}
else if ( bExplorer4plus ) {
divMenu.style.top = document.body.scrollTop + 100;
//divMenu.style.visibility = "visible";
divMenu.style.visibility = "hidden";
}</script>
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