资 源 简 介
// Browser Slide-Show script. With image cross fade effect for those browsers
// that support it.
// Script copyright (C) 2004-2008 www.cryer.co.uk.
// Script is free to use provided this copyright header is included.
var FadeDurationMS=1000;
function SetOpacity(object,opacityPct)
{
// IE.
object.style.filter = "alpha(opacity=" + opacityPct + ")";
// Old mozilla and firefox
object.style.MozOpacity = opacityPct/100;
// Everything else.
object.style.opacity = opacityPct/100;
}
function ChangeOpacity(id,msDuration,msStart,fromO,toO)
{
var element=document.getElementById(id);
var msNow = (new Date()).getTime();
var opacity = fromO + (toO - fromO) **(msNow - msStart) / msDuration;
if (opacity>=100)
{
SetOpacity(element,100);
element.timer = undefined;
}
else if (opacity<=0)
{
SetOpacity(element,0);
element.timer = undefined;
}
else
{
SetOpacity(element,opacity)
