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说明: QQ式的导航
效果: 运行后查看！
代码: 要完成此效果把如下代码加入到<body>区域中
<SCRIPT>
NS6 = (document.getElementById&&!document.all)
IE = (document.all)
NS = (navigator.appName=="Netscape" &&
navigator.appVersion.charAt(0)=="4")
tempBar='';barBuilt=0;ssmItems=new Array();
moving=setTimeout('null',1)
function moveOut() {
if ((NS6||NS)&&parseInt(ssm.left)<0 || IE &&
ssm.pixelLeft<0) {
clearTimeout(moving);moving = setTimeout('moveOut()',
slideSpeed);slideMenu(10)}
else {clearTimeout(moving);moving=setTimeout('null',1)}};
function moveBack() {clearTimeout(moving);moving =
setTimeout('moveBack1()', waitTime)}
function moveBack1() {
if ((NS6||NS) && parseInt(ssm.left)>(-menuWidth)
||
IE && ssm.pixelLeft>(-menuWidth)) {
clearTimeout(moving);moving = setTimeout('moveBack1()',
slideSpeed);slideMenu(-10)}
else {clearTimeout(moving);moving=setTimeout('null',1)}}
function slideMenu(num){
if (IE) {ssm.pixelLeft += num;}
if (NS||NS6) {ssm.left = parseInt(ssm.left)+num;}
if (NS) {bssm.clip.right+=num;bssm2.clip.right+=num;}}
function makeStatic() {
if (NS||NS6) {winY = window.pageYOffset;}
if (IE) {winY = document.body.scrollTop;}
if (NS6||IE||NS) {
if (winY!=lastY&&winY>YOffset-staticYOffset)
{
smooth = .2 * (winY - lastY - YOffset + staticYOffset);}
else if (YOffset-staticYOffset+lastY>YOffset-staticYOffset)
{
smooth = .2 * (winY - lastY - (YOffset-(YOffset-winY)));}
else {smooth=0}
if(smooth > 0) smooth = Math.ceil(smooth);
else smooth = Math.floor(smooth);
if (IE) bssm.pixelTop+=smooth;
if (NS6||NS) bssm.top=parseInt(bssm.top)+smooth
lastY = lastY+smooth;
setTimeout('makeStatic()', 1)}}
function buildBar() {
if(barText.indexOf('<IMG')>-1) {tempBar=barText}
else{for (b=0;b<barText.length;b++) {tempBar+=barText.charAt(b)+"<BR>"}}
document.write('<td align="center" rowspan="100"
width="
'+barWidth+'" bgcolor="'+barBGColor+'"
valign="'+barVAlign+'">
<p align="center"><font face="'+barFontFamily+'"
Size="'+barFontSize+'" COLOR="'+barFontColor+'"><B>'+tempBar+'</B></font></p></TD>')}
function initSlide() {
if (NS6){ssm=document.getElementById("thessm").style;
bssm=document.getElementById("basessm").style;
bssm.clip="rect(0 "+document.getElementById("thessm").offsetWidth+"
"+document.getElementById("thessm").offsetHeight+"
0)";
ssm.visibility="visible";}
else if (IE) {ssm=document.all("thessm").style;
bssm=document.all("basessm").style
bssm.clip="rect(0 "+thessm.offsetWidth+"
"+
thessm.offsetHeight+" 0)";bssm.visibility =
"visible";}
else if (NS) {bssm=document.layers["basessm1"];
bssm2=bssm.document.layers["basessm2"];
ssm=bssm2.document.layers["thessm"];
bssm2.clip.left=0;ssm.visibility = "show";}
if (menuIsStatic=="yes") makeStatic();}
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