1 <html xmlns="http://www.w3.org/1999/xhtml"> 2 <head> 3 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 4 <title>无标题文档</title> 5 <style type="text/css"> 6 *{margin:0px auto;padding:0px;} 7 #sel{width:280px;height:40px;border:1px solid #c0f;margin-top:100px;line-height:40px;vertical-align:middle;padding-left:20px;} 8 #list{width:300px;height:200px;border-left:1px solid #c0f;border-right:1px solid #c0f;} 9 .item{width:280px;height:39px;border-bottom:1px solid #c0f;line-height:40px;vertical-align:middle;padding-left:20px;} 10 </style> 11 </head> 12 13 <body> 14 <div id="sel"></div> 15 <div id="list" style="display:none"> 16 <div class="item" onmouseover="xz(this)" onclick="xuanzhong(this)">北京</div> 17 <div class="item" onmouseover="xz(this)" onclick="xuanzhong(this)">上海</div> 18 <div class="item" onmouseover="xz(this)" onclick="xuanzhong(this)">广州</div> 19 <div class="item" onmouseover="xz(this)" onclick="xuanzhong(this)">深圳</div> 20 <div class="item" onmouseover="xz(this)" onclick="xuanzhong(this)">重庆</div> 21 22 </div> 23 </body> 24 <script type="text/javascript"> 25 function xz(a){ 26 var sy=document.getElementsByClassName("item"); 27 for(var i=0;i<sy.length;i++){ 28 sy[i].style.backgroundColor="white"; 29 sy[i].style.color="black"; 30 } 31 a.style.backgroundColor ="#ccc"; 32 a.style.color="white"; 33 } 34 35 var sel=document.getElementById("sel"); 36 sel.onclick =function(){ 37 var c=document.getElementById("list"); 38 if(c.style.display=="none"){ 39 c.style.display="block"; 40 }else{ 41 c.style.display="none"; 42 } 43 } 44 45 function xuanzhong(a){ 46 document.getElementById("list").style.display="none"; 47 document.getElementById("sel").innerText =a.innerText; 48 } 49 </script> 50 </html>
