左侧竖直导航，鼠标滑过横向显示二级菜单

　　一款适合放在网页左侧的竖直导航，鼠标滑过时横向显示二级菜单，应该是可以扩展三级菜单的，但是作者并没有这么做，有技术的朋友不妨试一下，另外这款菜单的诞生时间估计比较早，JavaScrtipt代码比较冗长，不过渐显效果还是挺不错的哦，需不需要用，您自己决定吧！

　　示例：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>左侧渐显菜单</title> </head> <body> <script> var menus = new Array(); var isShow = new Boolean(); isShow=false; var isdown = new Boolean(); isdown=false; var srcel; var fromel; var toel; var usestatus=false; var thestatus=""; var popTimer = 0; menucolor='#EEBF99';fontcolor='MenuText';menuoutcolor='#F3D5B8';menuincolor='#F8E8D6';menuoutbordercolor='#FCF3EF';menuinbordercolor='#000000';midoutcolor='#F2D0B5';midincolor='#9E7F66';menuovercolor='#E80005';menuunitwidth=160;menuitemwidth=160;menuheight=180;menuwidth='160';menuadjust=0; menualign='center';leftchar='(无)';rightchar='(无)';fonts='font-family: 宋体; font-size: 9pt; color: MenuText; ';cursor='default'; var fadeSteps = 5; var fademsec = 20; var fadeArray = new Array(); function fade(el, fadeIn, steps, msec) { if (steps == null) steps = fadeSteps; if (msec == null) msec = fademsec; if (el.fadeIndex == null) el.fadeIndex = fadeArray.length; fadeArray[el.fadeIndex] = el; if (el.fadeStepNumber == null) { if (el.style.visibility == "hidden") el.fadeStepNumber = 0; else el.fadeStepNumber = steps; if (fadeIn) el.style.filter = "Alpha(Opacity=0)"; else el.style.filter = "Alpha(Opacity=100)"; } window.setTimeout("repeatFade(" + fadeIn + "," + el.fadeIndex + "," + steps + "," + msec + ")", msec); } function repeatFade(fadeIn, index, steps, msec) { el = fadeArray[index]; c = el.fadeStepNumber; if (el.fadeTimer != null) window.clearTimeout(el.fadeTimer); if ((c == 0) && (!fadeIn)) { el.style.visibility = "hidden"; return; } else if ((c==steps) && (fadeIn)) { el.style.filter = ""; el.style.visibility = "visible"; return; } else { (fadeIn) ? c++ : c--; el.style.visibility = "visible"; el.style.filter = "Alpha(Opacity=" + 100*c/steps + ")"; el.fadeStepNumber = c; el.fadeTimer = window.setTimeout("repeatFade(" + fadeIn + "," + index + "," + steps + "," + msec + ")", msec); } } function popOut() { popTimer = setTimeout('allhide()', 1000); } function getReal(el, type, value) { temp = el; while ((temp != null) && (temp.tagName != "BODY")) { if (eval("temp." + type) == value) { el = temp; return el; } temp = temp.parentElement; } return el; } function MenuRegister(menu) { menus[menus.length] = menu return (menus.length - 1) } function MenuItem(caption,command,target,isline,statustxt){ this.caption=caption; this.command=command; this.target=target; this.isline=isline; this.statustxt=statustxt; } function Menu(caption,command,target){ this.items = new Array(); this.caption=caption; this.command=command; this.target=target; this.id=MenuRegister(this); } function MenuAddItem(item) { this.items[this.items.length] = item item.parent = this.id; this.children=true; } Menu.prototype.addItem = MenuAddItem; function toout(src){ src.style.borderLeftColor=menuoutbordercolor; src.style.borderRightColor=menuinbordercolor; src.style.borderTopColor=menuoutbordercolor; src.style.borderBottomColor=menuinbordercolor; src.style.backgroundColor=menuoutcolor; src.style.color=menuovercolor; } function toin(src){ src.style.borderLeftColor=menuinbordercolor; src.style.borderRightColor=menuoutbordercolor; src.style.borderTopColor=menuinbordercolor; src.style.borderBottomColor=menuoutbordercolor; src.style.backgroundColor=menuincolor; src.style.color=menuovercolor; } function nochange(src){ src.style.borderLeftColor=menucolor; src.style.borderRightColor=menucolor; src.style.borderTopColor=menucolor; src.style.borderBottomColor=menucolor; src.style.backgroundColor=menucolor; src.style.color=fontcolor; } function allhide(){ for(var nummenu=0;nummenu<menus.length;nummenu++){ var themenu=document.all['menu'+nummenu] var themenudiv=document.all['menudiv'+nummenu] nochange(themenu); menuhide(themenudiv); } } function menuhide(menuid){ fade(menuid,false,6); isShow=false; } function menushow(menuid,pid){ menuid.style.left=menutable.offsetLeft+menuadjust+parseInt(menuwidth);menuid.style.top=menutable.offsetTop+pid.offsetTop;fade(menuid,true,6); isShow=true; } function menu_over(menuid,x){ toEl = getReal(window.event.toElement, "className", "coolButton"); fromEl = getReal(window.event.fromElement, "className", "coolButton"); if (toEl == fromEl) return; srcel = window.event.srcElement; if(menus[x].command==""){ allhide(); toin(srcel); menushow(menuid,eval("menu"+x)); }else{ isShow = false; allhide(); toout(srcel); } clearTimeout(popTimer); } function menu_out(menuid){ toEl = getReal(window.event.toElement, "className", "coolButton"); fromEl = getReal(window.event.fromElement, "className", "coolButton"); if (toEl == fromEl) return; srcel = window.event.srcElement; if (isShow){ toin(srcel); }else{ nochange(srcel); } popOut() } function menu_down(menuid,x){ srcel = getReal(window.event.srcElement, "className", "coolButton"); if(menus[x].command==""){ if(isShow){ menuhide(menuid); toout(srcel); } else{ toin(srcel); menushow(menuid,eval("menu"+x)); isdown=true; } }else{ toin(srcel); isdown=true; } } function menu_up(){ isdown=false; } function menuitem_over(menuid){ srcel = getReal(window.event.srcElement, "className", "coolButton"); if(isdown){ toin(srcel); } else{ toout(srcel); } if(thestatus!=""){ usestatus=true; window.status=thestatus; } clearTimeout(popTimer); } function menuitem_out(menuid){ srcel = getReal(window.event.srcElement, "className", "coolButton"); nochange(srcel); if(usestatus)window.status=""; popOut() } function menuitem_down(menuid){ srcel = getReal(window.event.srcElement, "className", "coolButton"); toin(srcel) isdown=true; } function menuitem_up(menuid){ srcel = getReal(window.event.srcElement, "className", "coolButton"); toout(srcel) isdown=false; } function exec2(x){ var cmd; if(menus[x].target=="blank"){ cmd = "window.open('"+menus[x].command+"')"; }else{ cmd = menus[x].target+".location='"+menus[x].command+"'"; } eval(cmd); } function exec(x,i){ var cmd; if(menus[x].items[i].target=="blank"){ cmd = "window.open('"+menus[x].items[i].command+"')"; }else{ cmd = menus[x].items[i].target+".location='"+menus[x].items[i].command+"'"; } eval(cmd); } function body_click(){ if (isShow){ srcel = getReal(window.event.srcElement, "className", "coolButton"); for(var x=0;x<=menus.length;x++){ if(srcel.id=="menu"+x) return; } allhide(); } } document.onclick=body_click; var MenuBodyRef; function writetodocument(){ var wb=1; for(var i in document.all){ if (document.all[i].tagName == 'BODY'){ MenuBodyRef = document.all[i] var stringx='<table id=menutable border=0 cellpadding=0 cellspacing=2 width='+menuwidth+' height='+menuheight+' bgcolor='+menucolor+ ' onselectstart="event.returnValue=false"'+ ' style="position:absolute;top=170;left=8;cursor:'+cursor+';'+fonts+ ' border-left: '+wb+'px solid '+menuoutbordercolor+';'+ ' border-right: '+wb+'px solid '+menuinbordercolor+'; '+ 'border-top: '+wb+'px solid '+menuoutbordercolor+'; '+ 'border-bottom: '+wb+'px solid '+menuinbordercolor+'; padding:0px"><tr>' if(leftchar!="(无)")stringx+='<td width="100%" align="center">'+leftchar+'</td></tr><tr>' for(var x=0;x<menus.length;x++){ var thismenu=menus[x]; stringx += "<td class=coolButton id=menu"+x+" style='border: 1px solid "+menucolor+ "' width="+menuunitwidth+"px onmouseover=menu_over(menudiv"+x+ ","+x+") onmouseout=menu_out(menudiv"+x+ ") onmousedown=menu_down(menudiv"+x+","+x+")"; if(thismenu.command!=""){ stringx += " onmouseup=exec2("+x+");menu_up();"; }else{ stringx += " onmouseup=menu_up()"; } stringx += " align="+menualign+">"+thismenu.caption+"</td></tr><tr>" } if(rightchar!="(无)")stringx+='<td width="100%" align="center">'+rightchar+'</td>' stringx+="</tr></table>"; for(var x=0;x<menus.length;x++){ thismenu=menus[x]; if(x==0||x==4||x==5){ stringx+='<div id=menudiv'+x+' style="visiable:none"></div>'; }else{ stringx+='<div id=menudiv'+x+ ' style="cursor:'+cursor+';position:absolute;'+ 'width:'+menuitemwidth+'px; z-index:'+(x+100)+ ';border-left: 1px solid '+midoutcolor+'; '+ 'border-right: 1px solid '+menuinbordercolor+';'+ ' border-top: 1px solid '+midoutcolor+'; '+ 'border-bottom: 1px solid '+menuinbordercolor+';visibility:hidden" onselectstart="event.returnValue=false">\n'+ '<table width="100%" border="0" height="100%" align="center" cellpadding="0" cellspacing="2" '+ 'style="'+fonts+' border-left: 1px solid '+menuoutbordercolor+';'+ ' border-right: 1px solid '+midincolor+';'+ ' border-top: 1px solid '+menuoutbordercolor+'; '+ 'border-bottom: 1px solid '+midincolor+'; padding: 4px" bgcolor='+menucolor+'>\n' for(var i=0;i<thismenu.items.length;i++){ var thismenuitem=thismenu.items[i]; if(!thismenuitem.isline){ stringx += "<tr><td class=coolButton style='border: 1px solid "+menucolor+ "' width=100% height=15px onmouseover=\"thestatus='"+thismenuitem.statustxt+"';menuitem_over(menudiv"+x+ ");\" onmouseout=menuitem_out(menudiv"+x+ ") onmousedown=menuitem_down(menudiv"+x+") onmouseup="; stringx += "exec("+x+","+i+");menuitem_up(menudiv"+x+")>"+ thismenuitem.caption +"</td></tr>\n"; }else{ stringx+='<tr><td height="1" background="hr.gif"><img border="0" src="none.gif" width="1" height="1"></td></tr>\n'; } } } stringx+='</table>\n</div>' } document.write(stringx); break } } } function document_load(){ writetodocument(); } pmenu1=new Menu('锐意首页','#','self'); pmenu2=new Menu('明星壁纸','','self'); pmenu2.addItem(new MenuItem(' 大陆明星壁纸','#','top',false,'大陆明星壁纸')); pmenu2.addItem(new MenuItem(' 港台明星壁纸','#','top',false,'港台明星壁纸')); pmenu2.addItem(new MenuItem(' 欧美明星壁纸','#','top',false,'欧洲明星壁纸')); pmenu2.addItem(new MenuItem(' 日本明星壁纸','#','top',false,'日本明星壁纸,因为空间不够，没有上传完，请原谅')); pmenu2.addItem(new MenuItem(' 韩国明星壁纸','#','top',false,'韩国明星壁纸')); pmenu3=new Menu('明星写真','','self'); pmenu3.addItem(new MenuItem(' 韩国明星写真','#','self',false,'因为空间不够，没有上传，请原谅')); pmenu3.addItem(new MenuItem(' 港台明星写真','#','self',false,'因为空间不够，没有上传，请原谅')); pmenu3.addItem(new MenuItem(' 欧美明星写真','#','self',false,'因为空间不够，没有上传，请原谅')); pmenu3.addItem(new MenuItem(' 日本明星写真','#','self',false,'因为空间不够，没有上传，请原谅')); pmenu3.addItem(new MenuItem(' 韩国明星写真','#','self',false,'因为空间不够，没有上传，请原谅')); pmenu4=new Menu('新闻中心','','self'); pmenu4.addItem(new MenuItem(' 娱乐新闻','','self',false,'制作中')); pmenu4.addItem(new MenuItem(' 社会新闻','','self',false,'制作中')); pmenu4.addItem(new MenuItem(' 游戏新闻','','self',false,'制作中')); pmenu4.addItem(new MenuItem(' 新闻首页','','self',false,'制作中')); pmenu5=new Menu('游人天地','#','self'); pmenu6=new Menu('烈火学院','http://www.liehuo.net','blank'); document.write("<body bgcolor='#FCF1DC'>") document_load() </script> </body> </html> <br /><center>如不能显示效果，请按Ctrl+F5刷新本页，更多网页代码：<a href='http://www.veryhuo.com/' target='_blank'>http://www.veryhuo.com/</a></center>
提示：可修改后代码再运行!