网上抓的一个特效_javascript技巧

menu.js 文件代码：

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//----begin-----共用函数-----
function buildBar()
{
if(barText.indexOf('-1)
{
tempBar=barText;
}
else
{
for (b=0;b {
tempBar+=barText.charAt(b)+"
";
}
}
document.write('')
}
//----end-----共用函数-----

//----begin-----IE浏览器部分-----

function moveIEOut()
{
if (ssm.pixelLeft<0)
{
clearTimeout(moving);moving = setTimeout('moveIEOut()', slideSpeed);slideIEMenu(10)
}
else
{
clearTimeout(moving);moving=setTimeout('null',1)
}
}

function moveIEBack()
{
clearTimeout(moving);moving = setTimeout('moveIEBack1()', waitTime)
}
function moveIEBack1()
{
if (ssm.pixelLeft>(-menuWidth))
{
clearTimeout(moving);moving = setTimeout('moveIEBack1()', slideSpeed);slideIEMenu(-10)
}
else
{
clearTimeout(moving);moving=setTimeout('null',1)
}
}

function slideIEMenu(num)
{
ssm.pixelLeft += num;
}

function makeIEStatic()
{
winY = document.body.scrollTop;
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);
}
bssm.pixelTop+=smooth;
lastY = lastY+smooth;
setTimeout('makeIEStatic()', 1)
}

function initIESlide()
{
ssm=document.all("thessm").style;
bssm=document.all("basessm").style;
bssm.clip="rect(0 "+thessm.offsetWidth+" "+thessm.offsetHeight+" 0)";
bssm.visibility = "visible";
if (menuIsStatic=="yes")
{
makeIEStatic();
}
}

function buildIEMenu()
{
document.write('')
document.write('

//----begin-----NS部分-----
function moveNSOut()
{
if (parseInt(ssm.left)<0)
{
clearTimeout(moving);moving = setTimeout('moveNSOut()', slideSpeed);slideNSMenu(10)
}
else
{
clearTimeout(moving);moving=setTimeout('null',1)
}
}

function moveNSBack()
{
clearTimeout(moving);moving = setTimeout('moveNSBack1()', waitTime)
}

function moveNSBack1()
{
if (parseInt(ssm.left)>(-menuWidth))
{
clearTimeout(moving);moving = setTimeout('moveNSBack1()', slideSpeed);slideNSMenu(-10)
}
else
{
clearTimeout(moving);moving=setTimeout('null',1)
}
}

function slideNSMenu(num)
{
ssm.left = parseInt(ssm.left)+num;
bssm.clip.right+=num;bssm2.clip.right+=num;
}

function makeNSStatic()
{
winY = window.pageYOffset;
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);
}
bssm.top=parseInt(bssm.top)+smooth
lastY = lastY+smooth;
setTimeout('makeNSStatic()', 1)
}

function initNSSlide()
{
bssm=document.layers["basessm1"];
bssm2=bssm.document.layers["basessm2"];ssm=bssm2.document.layers["thessm"];
bssm2.clip.left=0;ssm.visibility = "show";
if (menuIsStatic=="yes")
{
makeNSStatic();
}
}

function buildNSMenu()
{
document.write('')
document.write('

//-----begin------NS6部分-----
function moveNS6Out()
{
if (parseInt(ssm.left)<0)
{
clearTimeout(moving);moving = setTimeout('moveNS6Out()', slideSpeed);slideNS6Menu(10)
}
else
{
clearTimeout(moving);moving=setTimeout('null',1)
}
}
function moveNS6Back()
{
clearTimeout(moving);moving = setTimeout('moveNS6Back1()', waitTime)
}
function moveNS6Back1()
{
if (parseInt(ssm.left)>(-menuWidth))
{
clearTimeout(moving);moving = setTimeout('moveNS6Back1()', slideSpeed);slideNS6Menu(-10)
}
else
{
clearTimeout(moving);moving=setTimeout('null',1)
}
}

function slideNS6Menu(num)
{
ssm.left = parseInt(ssm.left)+num;
}

function makeNS6Static()
{
winY = window.pageYOffset;
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);
}
bssm.top=parseInt(bssm.top)+smooth
lastY = lastY+smooth;
setTimeout('makeNS6Static()', 1)
}

function initNS6Slide()
{
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";
if (menuIsStatic=="yes")
{
makeNS6Static();
}
}

function buildNS6Menu()
{
document.write('')
document.write('

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)

YOffset=150;
XOffset=0;
staticYOffset=30;
slideSpeed=20
waitTime=50;
menuBGColor="";
menuIsStatic="yes";
menuWidth=100;
menuCols=2;
hdrFontFamily="verdana";
hdrFontSize="2";
hdrFontColor="#000000";
hdrBGColor="#ffffff";
hdrAlign="left";
hdrVAlign="center";
hdrHeight="15";
linkFontFamily="Verdana";
linkFontSize="2";
linkBGColor="white";
linkOverBGColor="#FFFF99";
linkTarget="_top";
linkAlign="Left";
barBGColor="";
barFontFamily="Verdana";
barFontSize="2";
barFontColor="#ff3333";
barVAlign="center";
barWidth=20;
barText="※乐趣 个人事务所※";

ssmItems[0]=["我要注册", "/eden/ctl_eden_login.php?ctlObj=login_protocol", "_blank"]
ssmItems[1]=["我的首页", "/eden/ctl_eden.php", "_blank"]
ssmItems[2]=["我的收藏夹", "/eden/ctl_eden.php?ctlOprType=get&ctlObj=favorites", "_blank"]
ssmItems[3]=["我的好友", "/eden/ctl_eden.php?ctlOprType=get&ctlObj=friends", "_blank"]
ssmItems[4]=["我的留言", "/eden/ctl_eden.php?ctlOprType=get&ctlObj=msgs", "_blank"]
ssmItems[5]=["我的论坛", "/eden/forum/ctl_eden_forum.php", "_blank"]
ssmItems[6]=["我的博客", "/eden/blog/", "_blank"]
ssmItems[7]=["我的相册", "/eden/album/", "_blank"]
ssmItems[8]=["图片管理", "/eden/upload/ctl_upload.php", "_blank"]
ssmItems[9]=["高级搜索", "/eden/search_menu.html", "_blank"]
ssmItems[10]=["热线帮助", "http://hk.netsh.com/eden/bbs/154/", "_blank"]
ssmItems[11]=["退出登录", "/eden/ctl_eden_login.php?ctlOprType=put&ctlObj=login_out", ""]

if(IE)
{
buildIEMenu();
}
else if(NS)
{
buildNSMEnu();
}
else if(NS6)
{
buildNS6MEnu();
}
else
{
alert("不能运行！");
}