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 + 295; 
} 
else if ( bExplorer4plus ) { 
yMenuFrom = parseInt (divMenu.style.top, 10); 
yMenuTo = document.body.scrollTop + 135; //¾àÒ³Ã涥²¿µÄ¾àÀë 
} 

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 + 135; 
document["divMenu"].visibility = "visible"; 
} 
else if ( bExplorer4plus ) { 
divMenu.style.top = document.body.scrollTop + 235; 
divMenu.style.visibility = "visible"; 
} 
CheckUIElements(); 
return true; 
} 
OnLoad();