这样的层移动效果怎么做？
点击层上一个按钮，层从右侧滑出，再点击这个按钮层缩回只留这个按钮。谁有这样效果的代码，越简单越好。
[解决办法]
1.将下面的代码复制到 <body>
<style><!--/*Maximus' Slide-In Menu (By Maximus at http://absolutegb.com/maximus/)Submitted and featured on Dynamicdrive.comFor full source, usage terms, and 100's more DHTML scripts, visit http://www.dynamicdrive.com*/#ssm2 A { color:black; text-decoration:none; font-size:12; font-family:verdana; }#ssm2 A:hover { color:red; }--></style> <script language="JavaScript1.2">function MM_displayStatusMsg(msgStr) { status=msgStr; document.MM_returnValue = true;}function highlight(x){document.forms[x].elements[0].focus()document.forms[x].elements[0].select()}function MM_jumpMenu(targ,selObj,restore){ eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'"); if (restore) selObj.selectedIndex=0;}var NSIE=document.all;NS=document.layers;hdrFontFamily="Verdana";hdrFontSize="2";hdrFontColor="white";hdrBGColor="#666666";linkFontFamily="Verdana";linkFontSize="2";linkBGColor="white";linkOverBGColor="#CCCCCC";linkTarget="_top";YOffset=60;staticYOffset=20;menuBGColor="black";menuIsStatic="no";menuHeader="Main Index"menuWidth=150; // Must be a multiple of 5!staticMode="advanced"barBGColor="#1298fd";barFontFamily="Verdana";barFontSize="2";barFontColor="white";barText="MENU";function moveOut() {if (window.cancel) { cancel="";}if (window.moving2) { clearTimeout(moving2); moving2="";}if ((IE && ssm2.style.pixelLeft<0)||(NS && document.ssm2.left<0)) { if (IE) {ssm2.style.pixelLeft += (5%menuWidth);}if (NS) { document.ssm2.left += (5%menuWidth);}moving1 = setTimeout('moveOut()', 5)}else { clearTimeout(moving1) }};function moveBack() { cancel = moveBack1()}function moveBack1() { if (window.moving1) { clearTimeout(moving1)}if ((IE && ssm2.style.pixelLeft>(-menuWidth))||(NS && document.ssm2.left>(-150))) { if (IE) {ssm2.style.pixelLeft -= (5%menuWidth);}if (NS) { document.ssm2.left -= (5%menuWidth);}moving2 = setTimeout('moveBack1()', 5)} else { clearTimeout(moving2) }};lastY = 0;function makeStatic(mode) {if (IE) {winY = document.body.scrollTop;var NM=ssm2.style}if (NS) {winY = window.pageYOffset;var NM=document.ssm2}if (mode=="smooth") { if ((IE||NS) && winY!=lastY) { smooth = .2 * (winY - lastY); if(smooth > 0) smooth = Math.ceil(smooth); else smooth = Math.floor(smooth); if (IE) NM.pixelTop+=smooth; if (NS) NM.top+=smooth; lastY = lastY+smooth;}setTimeout('makeStatic("smooth")', 1)}else if (mode=="advanced") { if ((IE||NS) && winY>YOffset-staticYOffset) { if (IE) {NM.pixelTop=winY+staticYOffset }if (NS) {NM.top=winY+staticYOffset }}else {if (IE) {NM.pixelTop=YOffset} if (NS) {NM.top=YOffset-7 }}setTimeout('makeStatic("advanced")', 1) }}function init() {if (IE) {ssm2.style.pixelLeft = -menuWidth;ssm2.style.visibility = "visible"}else if (NS) {document.ssm2.left = -menuWidth;document.ssm2.visibility = "show"}else {alert('Choose either the "smooth" or "advanced" static modes!')}}function MM_displayStatusMsg(msgStr) { status=msgStr; document.MM_returnValue = true;}</script> <script language="JavaScript1.2">if (IE) {document.write('<DIV ID="ssm2" style="visibility:hidden;Position : Absolute ;Left : 0px ;Top : '+YOffset+'px ;Z-Index : 20;width:1px" onmouseover="moveOut()" onmouseout="moveBack()">')}if (NS) {document.write('<LAYER visibility="hide" top="'+YOffset+'" name="ssm2" bgcolor="'+menuBGColor+'" left="0" onmouseover="moveOut()" onmouseout="moveBack()">')}tempBar=""for (i=0;i<barText.length;i++) {tempBar+=barText.substring(i, i+1)+"<BR>"}document.write('<table border="0" cellpadding="0" cellspacing="1" width="'+(menuWidth+16+2)+'" bgcolor="'+menuBGColor+'"><tr><td bgcolor="'+hdrBGColor+'" WIDTH="'+menuWidth+'"> <font face="'+hdrFontFamily+'" Size="'+hdrFontSize+'" COLOR="'+hdrFontColor+'"><b>'+menuHeader+'</b></font></td><td align="center" rowspan="100" width="16" bgcolor="'+barBGColor+'"><p align="center"><font face="'+barFontFamily+'" Size="'+barFontSize+'" COLOR="'+barFontColor+'"><B>'+tempBar+'</B></font></p></TD></tr>')function addItem(text, link, target) {if (!target) {target=linkTarget}document.write('<TR><TD BGCOLOR="'+linkBGColor+'" onmouseover="bgColor=\''+linkOverBGColor+'\'" onmouseout="bgColor=\''+linkBGColor+'\'"><ILAYER><LAYER onmouseover="bgColor=\''+linkOverBGColor+'\'" onmouseout="bgColor=\''+linkBGColor+'\'" WIDTH="100%"><FONT face="'+linkFontFamily+'" Size="'+linkFontSize+'"> <A HREF="'+link+'" target="'+target+'" CLASS="ssm2Items">'+text+'</A></FONT></LAYER></ILAYER></TD></TR>')}function addHdr(text) {document.write('<tr><td bgcolor="'+hdrBGColor+'" WIDTH="140"> <font face="'+hdrFontFamily+'" Size="'+hdrFontSize+'" COLOR="'+hdrFontColor+'"><b>'+text+'</b></font></td></tr>')}//Only edit the script between HEREaddItem('Dynamic Drive', 'http://www.dynamicdrive.com', '');addItem('What\'s New', 'http://www.dynamicdrive.com/new.htm', '');addItem('What\'s Hot', 'http://www.dynamicdrive.com/hot.htm', '');addItem('Forum', 'http://wsabstract.com/cgi-bin/Ultimate.cgi', '');addItem('FAQs', 'http://www.dynamicdrive.com/faqs.htm', '');addItem('Submit', 'http://www.dynamicdrive.com/submitscript.htm', '');addHdr('External Links');addItem('Website Abstraction', 'http://wsabstract.com', '_blank');addItem('Freewarejava', 'http://freewarejava.com', '_blank');addItem('DHTML Zone', 'http://www.dhtml-zone.com/', '_blank');addItem('Active-X.com', 'http://www.active-x.com', '_blank');addItem('Web Review', 'http://www.webreview.com', '_blank');addItem('David\'s Website', 'http://www.david-thurston.co.uk', '_blank');// and HERE! No more!document.write('<tr><td bgcolor="'+hdrBGColor+'"><font size="0" face="Arial"> </font></td></TR></table>')if (IE) {document.write('</DIV>')}if (NS) {document.write('</LAYER>')}if ((IE||NS) && (menuIsStatic=="yes"&&staticMode)) {makeStatic(staticMode);}</script><script>window.onload=init</script>