49、可以编辑的组合框

49、可以编辑的组合框

<html>

 

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312">

<title>网页特效可以编辑的Select组合框</title>

</head>

<body>

 

<style>

<!--

.cls1 { position:absolute; left:250px; top:89px; width:216px; height:72px; z-index:1; }

.cls2 { position:absolute; left:250px; top:89px; width:95px; height:18px; z-index:2 }

input { font-size: 12px; padding-top: 2px; padding-left: 2px;width:127;}

//-->

</style>

</head>

<script>

<!--

function addOption(pos){

 

       if(event.keyCode==13)

       {

              var select_obj = document.getElementById("myselect");

              var text_value   = document.getElementById("test").value;

 

              if (select_obj.length)

              {

                     for (var i=0;i<select_obj.length;i++)

                     {

                            // 如果已经存在,不添加,直接退出

                            if (select_obj.options[i].text==text_value)

                                   return false

                     }

              }

              var the_option= new Option(text_value,text_value);

             

              select_obj.add(the_option);

 

              select_obj.selectedIndex = select_obj.options.length-1

       }           

      

}

//-->

</script>

输入文字后回车即可看下拉菜单里已输入的内容,可以连续输入看看<div class="cls1" style="clip: rect(3 280 21 110)">

  <select name="myselect" style="width:127" onchange="document.getElementById('test').value=this.value">

  </select>

</div>

<div class="cls2">

<input type="text" name="test" onkeydown="addOption()" size="20" style="width: 127; height: 23">

</div>

 

</body>

</html>

 

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