JS implementiert mehrstufigen Navigationsmenücode für Produktwebsites mit Schubladeneffekt_Javascript-Fähigkeiten-js-Tutorial-php.cn

Das Beispiel in diesem Artikel beschreibt die JS-Implementierung von mehrstufigem Navigationsmenücode für Produktwebsites mit Schubladeneffekten. Teilen Sie es als Referenz mit allen. Die Details lauten wie folgt:
Dies ist ein schubladenartiges Menü, das hauptsächlich auf Produktwebsites verwendet wird, beispielsweise in der klassifizierten Navigation von IT-Produktwebsites. Die Menüstruktur ist klar, der Stil ist neu und das Design ist wunderschön Die Verwendung von JavaScript-Technologie und CSS zur Implementierung des Menüs ist im Allgemeinen ein gutes Beispiel für das Erlernen von Js mehrstufigen Kategoriemenüs.
Der Screenshot des Laufeffekts sieht wie folgt aus:
Die Online-Demo-Adresse lautet wie folgt:
http://demo.jb51.net/js/2015/js-ct-style-product-web-nav-menu-codes/
Der spezifische Code lautet wie folgt:
<!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>抽屉式菜单</title>
<script type="text/javascript">
 function setturns(i){
  selectturns(i);
 }
 function selectturns(i){
  switch(i){
   case 1:
   document.getElementById("t2").className="this";
   document.getElementById("t3").className="this2";
   document.getElementById("t4").className="bg02";
   document.getElementById("t5").className="bg02";
   document.getElementById("t6").className="bg02";
   document.getElementById("t7").className="bg02";
   document.getElementById("t8").className="bg02";
   document.getElementById("p1").style.display="block";
   document.getElementById("p2").style.display="none";
   document.getElementById("p3").style.display="none";
   document.getElementById("p4").style.display="none";
   document.getElementById("p5").style.display="none"; 
   document.getElementById("p6").style.display="none";
   break;
   case 2:
   document.getElementById("t2").className="bg02";
   document.getElementById("t3").className="this";
   document.getElementById("t4").className="this2";
   document.getElementById("t5").className="bg02";
   document.getElementById("t6").className="bg02";
   document.getElementById("t7").className="bg02"; 
   document.getElementById("t8").className="bg02";
  document.getElementById("p1").style.display="none";
   document.getElementById("p2").style.display="block";
   document.getElementById("p3").style.display="none";
   document.getElementById("p4").style.display="none";
   document.getElementById("p5").style.display="none";
   document.getElementById("p6").style.display="none";
   break;
   case 3:
   document.getElementById("t2").className="bg02";
   document.getElementById("t3").className="bg02";
   document.getElementById("t4").className="this";
   document.getElementById("t5").className="this2";
   document.getElementById("t6").className="bg02";
   document.getElementById("t7").className="bg02";
   document.getElementById("t8").className="bg02";
   document.getElementById("p1").style.display="none";
   document.getElementById("p2").style.display="none";
   document.getElementById("p3").style.display="block";
   document.getElementById("p4").style.display="none";
   document.getElementById("p5").style.display="none";
   document.getElementById("p6").style.display="none";
   break;
   case 4:
   document.getElementById("t2").className="bg02";
   document.getElementById("t3").className="bg02";
   document.getElementById("t4").className="bg02";
   document.getElementById("t5").className="this";
   document.getElementById("t6").className="this2";
   document.getElementById("t7").className="bg02";
   document.getElementById("t8").className="bg02";
   document.getElementById("p1").style.display="none";
   document.getElementById("p2").style.display="none";
   document.getElementById("p3").style.display="none";
   document.getElementById("p4").style.display="block";
   document.getElementById("p5").style.display="none";
   document.getElementById("p6").style.display="none";
   break;
   case 5:
   document.getElementById("t2").className="bg02";
   document.getElementById("t3").className="bg02";
   document.getElementById("t4").className="bg02";
   document.getElementById("t5").className="bg02";
   document.getElementById("t6").className="this";
   document.getElementById("t7").className="this2";
   document.getElementById("t8").className="bg02";
  document.getElementById("p1").style.display="none";
   document.getElementById("p2").style.display="none";
   document.getElementById("p3").style.display="none";
   document.getElementById("p4").style.display="none";
   document.getElementById("p5").style.display="block";
   document.getElementById("p6").style.display="none";
    break;
   case 6:
   document.getElementById("t2").className="bg02";
   document.getElementById("t3").className="bg02";
   document.getElementById("t4").className="bg02";
   document.getElementById("t5").className="bg02";
   document.getElementById("t6").className="bg02";
   document.getElementById("t7").className="this";
   document.getElementById("t8").className="this2";
  document.getElementById("p1").style.display="none";
   document.getElementById("p2").style.display="none";
   document.getElementById("p3").style.display="none";
   document.getElementById("p4").style.display="none";
   document.getElementById("p5").style.display="none";
   document.getElementById("p6").style.display="block";
  }
 }
function setturns2(i){
  selectturns2(i);
 }
 function selectturns2(i){
  switch(i){
   case 1:
   document.getElementById("b1").className="on";
   document.getElementById("b2").className="";
   document.getElementById("b3").className="";
   document.getElementById("b4").className="";
   document.getElementById("b5").className="";
   document.getElementById("s1").style.display="block";
   document.getElementById("s2").style.display="none";
   document.getElementById("s3").style.display="none";
   document.getElementById("s4").style.display="none";
   document.getElementById("s5").style.display="none";
   break;
   case 2:
   document.getElementById("b1").className="";
   document.getElementById("b2").className="on";
   document.getElementById("b3").className="";
   document.getElementById("b4").className="";
   document.getElementById("b5").className="";
   document.getElementById("s1").style.display="none";
   document.getElementById("s2").style.display="block";
   document.getElementById("s3").style.display="none";
   document.getElementById("s4").style.display="none";
   document.getElementById("s5").style.display="none";
   break;
   case 3:
   document.getElementById("b1").className="";
   document.getElementById("b2").className="";
   document.getElementById("b3").className="on";
   document.getElementById("b4").className="";
   document.getElementById("b5").className="";
   document.getElementById("s1").style.display="none";
   document.getElementById("s2").style.display="none";
   document.getElementById("s3").style.display="block";
   document.getElementById("s4").style.display="none";
   document.getElementById("s5").style.display="none";
   break;
   case 4:
   document.getElementById("b1").className="";
   document.getElementById("b2").className="";
   document.getElementById("b3").className="";
   document.getElementById("b4").className="on";
   document.getElementById("b5").className="";
   document.getElementById("s1").style.display="none";
   document.getElementById("s2").style.display="none";
   document.getElementById("s3").style.display="none";
   document.getElementById("s4").style.display="block";
   document.getElementById("s5").style.display="none";
   break;
   case 5:
   document.getElementById("b1").className="";
   document.getElementById("b2").className="";
   document.getElementById("b3").className="";
   document.getElementById("b4").className="";
   document.getElementById("b5").className="on";
   document.getElementById("s1").style.display="none";
   document.getElementById("s2").style.display="none";
   document.getElementById("s3").style.display="none";
   document.getElementById("s4").style.display="none";
   document.getElementById("s5").style.display="block";
  }
 }
function setturns3(i){
  selectturns3(i);
 }
 function selectturns3(i){
  switch(i){
   case 1: 
   document.getElementById("t2").className="this";
   document.getElementById("t3").className="this2";
  document.getElementById("p1").style.display="block";
   document.getElementById("s1").style.display="block";
   document.getElementById("s2").style.display="none";
   document.getElementById("s3").style.display="none";
   document.getElementById("s4").style.display="none";  
   document.getElementById("s5").style.display="none";
   break;
   case 2:
  document.getElementById("t2").className="this";
   document.getElementById("t3").className="this2";
  document.getElementById("p1").style.display="block";
   document.getElementById("s1").style.display="none";
   document.getElementById("s2").style.display="block";
   document.getElementById("s3").style.display="none";
   document.getElementById("s4").style.display="none";
   document.getElementById("s5").style.display="none";
   break;
   case 3: 
   document.getElementById("t2").className="this";
   document.getElementById("t3").className="this2";
  document.getElementById("p1").style.display="block";
   document.getElementById("s1").style.display="none";
   document.getElementById("s2").style.display="none";
   document.getElementById("s3").style.display="block";
   document.getElementById("s4").style.display="none";
   document.getElementById("s5").style.display="none";
   break;
   case 4:
   document.getElementById("t2").className="this";
   document.getElementById("t3").className="this2";
  document.getElementById("p1").style.display="block";
   document.getElementById("s1").style.display="none";
   document.getElementById("s2").style.display="none";
   document.getElementById("s3").style.display="none";
   document.getElementById("s4").style.display="block";
   document.getElementById("s5").style.display="none";
   break;
   case 5:
   document.getElementById("t2").className="this";
   document.getElementById("t3").className="this2";
  document.getElementById("p1").style.display="block";
   document.getElementById("s1").style.display="none";
   document.getElementById("s2").style.display="none";
   document.getElementById("s3").style.display="none";
   document.getElementById("s4").style.display="none";
   document.getElementById("s5").style.display="block";
  }
 }
 function setturns4(i){
  selectturns4(i);
 }
 function selectturns4(i){
  switch(i){
   case 1:
   document.getElementById("z1").className="on";
   document.getElementById("z2").className="";
   document.getElementById("z3").className="";
   document.getElementById("z4").className="";
   document.getElementById("z5").className="";
   document.getElementById("z6").className="";
   document.getElementById("z7").className="";
   document.getElementById("w1").style.display="block";
   document.getElementById("w2").style.display="none";
   document.getElementById("w3").style.display="none";
   document.getElementById("w4").style.display="none";
   document.getElementById("w5").style.display="none";
   document.getElementById("w6").style.display="none";
   document.getElementById("w7").style.display="none";
   break;
   case 2:
   document.getElementById("z1").className="";
   document.getElementById("z2").className="on";
   document.getElementById("z3").className="";
   document.getElementById("z4").className="";
   document.getElementById("z5").className="";
   document.getElementById("z6").className="";
   document.getElementById("z7").className="";
   document.getElementById("w1").style.display="none";
   document.getElementById("w2").style.display="block";
   document.getElementById("w3").style.display="none";
   document.getElementById("w4").style.display="none";
   document.getElementById("w5").style.display="none";
   document.getElementById("w6").style.display="none";
   document.getElementById("w7").style.display="none";
   break;
   case 3:
   document.getElementById("z1").className="";
   document.getElementById("z2").className="";
   document.getElementById("z3").className="on";
   document.getElementById("z4").className="";
   document.getElementById("z5").className="";
   document.getElementById("z6").className="";
   document.getElementById("z7").className="";
   document.getElementById("w1").style.display="none";
   document.getElementById("w2").style.display="none";
   document.getElementById("w3").style.display="block";
   document.getElementById("w4").style.display="none";
   document.getElementById("w5").style.display="none";
   document.getElementById("w6").style.display="none";
   document.getElementById("w7").style.display="none";
   break;
   case 4:
   document.getElementById("z1").className="";
   document.getElementById("z2").className="";
   document.getElementById("z3").className="";
   document.getElementById("z4").className="on";
   document.getElementById("z5").className="";
   document.getElementById("z6").className="";
   document.getElementById("z7").className="";
   document.getElementById("w1").style.display="none";
   document.getElementById("w2").style.display="none";
   document.getElementById("w3").style.display="none";
   document.getElementById("w4").style.display="block";
   document.getElementById("w5").style.display="none";
   document.getElementById("w6").style.display="none";
   document.getElementById("w7").style.display="none";
   break;
   case 5:
   document.getElementById("z1").className="";
   document.getElementById("z2").className="";
   document.getElementById("z3").className="";
   document.getElementById("z4").className="";
   document.getElementById("z5").className="on";
   document.getElementById("z6").className="";
   document.getElementById("z7").className="";
   document.getElementById("w1").style.display="none";
   document.getElementById("w2").style.display="none";
   document.getElementById("w3").style.display="none";
   document.getElementById("w4").style.display="none";
   document.getElementById("w5").style.display="block";
   document.getElementById("w6").style.display="none";
   document.getElementById("w7").style.display="none";
   break;
   case 6:
   document.getElementById("z1").className="";
   document.getElementById("z2").className="";
   document.getElementById("z3").className="";
   document.getElementById("z4").className="";
   document.getElementById("z5").className="";
   document.getElementById("z6").className="on";
   document.getElementById("z7").className="";
   document.getElementById("w1").style.display="none";
   document.getElementById("w2").style.display="none";
   document.getElementById("w3").style.display="none";
   document.getElementById("w4").style.display="none";
   document.getElementById("w5").style.display="none";
   document.getElementById("w6").style.display="block";
   document.getElementById("w7").style.display="none";
   break;
   case 7:
   document.getElementById("z1").className="";
   document.getElementById("z2").className="";
   document.getElementById("z3").className="";
   document.getElementById("z4").className="";
   document.getElementById("z5").className="";
   document.getElementById("z6").className="";
   document.getElementById("z7").className="on";
   document.getElementById("w1").style.display="none";
   document.getElementById("w2").style.display="none";
   document.getElementById("w3").style.display="none";
   document.getElementById("w4").style.display="none";
   document.getElementById("w5").style.display="none";
   document.getElementById("w6").style.display="none";
   document.getElementById("w7").style.display="block";
  }
 }
 function setturns5(i){
  selectturns5(i);
 }
 function selectturns5(i){
  switch(i){
   case 1:
   document.getElementById("t5").className="this";
   document.getElementById("t6").className="this2";
  document.getElementById("p4").style.display="block";
   document.getElementById("w1").style.display="block";
   document.getElementById("w2").style.display="none";
   document.getElementById("w3").style.display="none";
   document.getElementById("w4").style.display="none";
   document.getElementById("w5").style.display="none";
   document.getElementById("w6").style.display="none";
   document.getElementById("w7").style.display="none";
   break;
   case 2:
   document.getElementById("t5").className="this";
   document.getElementById("t6").className="this2";
  document.getElementById("p4").style.display="block";
   document.getElementById("w1").style.display="none";
   document.getElementById("w2").style.display="block";
   document.getElementById("w3").style.display="none";
   document.getElementById("w4").style.display="none";
   document.getElementById("w5").style.display="none";
   document.getElementById("w6").style.display="none";
   document.getElementById("w7").style.display="none";
   break;
   case 3:
   document.getElementById("t5").className="this";
   document.getElementById("t6").className="this2";
  document.getElementById("p4").style.display="block";
   document.getElementById("w1").style.display="none";
   document.getElementById("w2").style.display="none";
   document.getElementById("w3").style.display="block";
   document.getElementById("w4").style.display="none";
   document.getElementById("w5").style.display="none";
   document.getElementById("w6").style.display="none";
   document.getElementById("w7").style.display="none";
   break;
   case 4:
   document.getElementById("t5").className="this";
   document.getElementById("t6").className="this2";
  document.getElementById("p4").style.display="block";
   document.getElementById("w1").style.display="none";
   document.getElementById("w2").style.display="none";
   document.getElementById("w3").style.display="none";
   document.getElementById("w4").style.display="block";
   document.getElementById("w5").style.display="none";
   document.getElementById("w6").style.display="none";
   document.getElementById("w7").style.display="none";
   break;
   case 5:
   document.getElementById("t5").className="this";
   document.getElementById("t6").className="this2";
  document.getElementById("p4").style.display="block";
   document.getElementById("w1").style.display="none";
   document.getElementById("w2").style.display="none";
   document.getElementById("w3").style.display="none";
   document.getElementById("w4").style.display="none";
   document.getElementById("w5").style.display="block";
   document.getElementById("w6").style.display="none";
   document.getElementById("w7").style.display="none";
   break;
   case 6:
   document.getElementById("t5").className="this";
   document.getElementById("t6").className="this2";
  document.getElementById("p4").style.display="block";
   document.getElementById("w1").style.display="none";
   document.getElementById("w2").style.display="none";
   document.getElementById("w3").style.display="none";
   document.getElementById("w4").style.display="none";
   document.getElementById("w5").style.display="none";
   document.getElementById("w6").style.display="block";
   document.getElementById("w7").style.display="none";
   //download by http://www.jb51.net
   break;
   case 7:
   document.getElementById("t5").className="this";
   document.getElementById("t6").className="this2";
  document.getElementById("p4").style.display="block";
   document.getElementById("w1").style.display="none";
   document.getElementById("w2").style.display="none";
   document.getElementById("w3").style.display="none";
   document.getElementById("w4").style.display="none";
   document.getElementById("w5").style.display="none";
   document.getElementById("w6").style.display="none";
   document.getElementById("w7").style.display="block";
  }
 }
function setturnsout(i){
  selectturnsout(i);
 }
 function selectturnsout(i){
  switch(i){
   case 1:
   document.getElementById("t2").className="bg02";
   document.getElementById("t3").className="bg02";
   document.getElementById("t4").className="bg02";
   document.getElementById("t5").className="bg02";
   document.getElementById("t6").className="bg02";
   document.getElementById("t7").className="bg02";
   document.getElementById("t8").className="bg02";
   document.getElementById("p1").style.display="none";
   document.getElementById("p2").style.display="none";
   document.getElementById("p3").style.display="none";
   document.getElementById("p4").style.display="none";
   document.getElementById("p5").style.display="none";
   document.getElementById("p6").style.display="none";
   document.getElementById("s1").style.display="none";
   document.getElementById("s2").style.display="none";
   document.getElementById("s3").style.display="none";
   document.getElementById("s4").style.display="none";
   document.getElementById("s5").style.display="none";
   document.getElementById("w1").style.display="none";
   document.getElementById("w2").style.display="none";
   document.getElementById("w3").style.display="none";
   document.getElementById("w4").style.display="none";
   document.getElementById("w5").style.display="none";
   document.getElementById("w6").style.display="none";
   document.getElementById("w7").style.display="none";   
  }
 }
</script>
<style type="text/css"> 
body{ margin:0; padding:0; background:url(images/search_bg.gif) repeat-x; font-size:12px;}
ul,li{ margin:0; padding:0; list-style:none;}
 .link_box{ width:240px; background:url(images/search_bg.gif) repeat-x; padding-bottom:20px; height:295px;}
.link_box .prdct{ width:234px; margin-top:15px; float:right; position:relative;}
.link_box .prdct p{ position:absolute; background:url(images/cpzg.gif) repeat-y; height:32px; line-height:30px; width:234px;}
.link_box .prdct p a{ display:block; height:32px; width:190px; padding-right:44px; text-align:right;color:#004FA3; text-decoration:none; cursor:pointer;}
.link_box .prdct p a:hover{ text-decoration:none; color:#C40000;}
.link_box .prdct p.bg01{ background-position:0 0px;}
.link_box .prdct p.bg02{ background-position:0 -32px; }
.link_box .prdct p.bg07{background-position:0 -212px; }
.link_box .prdct p.this{ background-position:0 -61px; width:250px;}
.link_box .prdct p.this2{background-position:0 -91px; width:250px;}
.link_box .prdct p.this2 a{ margin-left:15px; color:#C40000; text-decoration:none;}
#t1{ top:0;}
#t2{top:32px;}
#t3{top:64px;}
#t4{top:96px;}
#t5{top:128px;}
#t6{top:160px;}
#t7{top:192px;}
#t8{top:224px;}
#t9{top:256px;}
.prdct .p_son{ width:200px; background:#F1F1F1;border:1px solid #cbcbcb; border-bottom:none; position:absolute; left:250px;display:none; }
.p_son li,.s_son li{ height:30px; line-height:30px; border:1px solid #fff; border-bottom:#cbcbcb; text-align:left; }
.p_son li a,.s_son li a{ color:#004FA3; text-decoration:none; display:block; width:188px; cursor:pointer; height:30px; padding-left:10px; overflow:hidden; white-space:nowrap;text-overflow:ellipsis;}
.p_son li a:visited,.s_son li a:visited{color:#004FA3;}
.p_son li a:hover,.s_son li a:hover{ color:#C40000; text-decoration:underline; background:#ddd;}
.p_son li a.jt{ background:url(images/001_14.gif) no-repeat 180px 50%; }
.p_son li a.jt:hover{ background:url(images/001_14.gif) no-repeat 180px 50% #ddd;}
.p_son li.on{background:url(images/001_14.gif) no-repeat 180px 50% #ddd;}
.p_son li.on a{color:#C40000; text-decoration:underline;}
#p1,#s1{top:36px;}
#p2,#s2{top:68px;}
#p3,#s3{top:100px;}
#p4,#s4{top:132px;}
#s5{ top:164px;}
#w1{ top:131px;}
#w2{ top:162px;}
#w3{ top:196px;}
#w4{ top:228px;}
#w5{ top:260px;}
#w6{ top:292px;}
#w7{ top:324px;}
#p5{top:164px;}
#p6{ top:196px;}
.prdct .s_son{left:450px;}
</style>
</head>
<body>
<div class="link_box">
<div class="prdct">
<p class="bg01" id="t1"></p>
<p class="bg02" id="t2"></p>
<p class="bg02" id="t3" onmouseover="setturns(1)" onmouseout="setturnsout(1)"><a href="#">表面活性剂系列</a></p>
<p class="bg02" id="t4" onmouseover="setturns(2)" onmouseout="setturnsout(1)"><a href="#">螯合剂系列</a></p>
<p class="bg02" id="t5" onmouseover="setturns(3)" onmouseout="setturnsout(1)"><a href="#">增粘乳液系列</a></p>
<p class="bg02" id="t6" onmouseover="setturns(4)" onmouseout="setturnsout(1)"><a href="#">造纸化学品系列</a></p>
<p class="bg02" id="t7" onmouseover="setturns(5)" onmouseout="setturnsout(1)"><a href="#">印刷化学品系列</a></p>
<p class="bg02" id="t8" onmouseover="setturns(6)" onmouseout="setturnsout(1)"><a href="#">代理产品</a></p>
<p class="bg07" id="t9"></p>
<div class="p_son" id="p1" onmouseover="setturns(1)" onmouseout="setturnsout(1)">
<ul>
<li id="b1" onmouseover="setturns2(1)" onmouseout="setturnsout(1)"><a href="#" class="jt">功能性表面活性剂</a></li>
<li id="b2" onmouseover="setturns2(2)" onmouseout="setturnsout(1)"><a href="#" class="jt">阳离子表面活性剂</a></li>
<li id="b3" onmouseover="setturns2(3)" onmouseout="setturnsout(1)"><a href="#" class="jt">非离子表面活性剂</a></li>
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