Javascript Tip(2) 动态添加列表框内容
<HTML>
<HEAD>
<TITLE> 测试Select</TITLE>
<script>
function addItem()
{
var txt=document.all("txt").value;
if(txt!="")
{
document.myForm.mySelect.length++;
document.myForm.mySelect.options[document.myForm.mySelect.length - 1].text=txt;
document.myForm.mySelect.options[document.myForm.mySelect.length - 1].value =document.myForm.mySelect.length;
}
else
{
alert("请填写内容");
}
}
</script>
</HEAD>
<BODY>
<form name="myForm">
<SELECT NAME="mySelect">
<option value="1">item1</option>
</SELECT></form>
内容:<input type="text" size=20 name="txt" id="txt"><br>
<input type="button" name="addBtn" value="添加内容" onClick="addItem();">
</BODY>
</HTML>
