javascript获取select的当前值示例代码(兼容IE/Firefox/Opera/Chrome)

JavaScript获取Select当前值写法：
var value = document.getElementById("select").options[document.getElementById("select").options.selectedIndex].value;
var text = document.getElementById("select").options[document.getElementById("select").options.selectedIndex].text;

例子：

<script>
function check() {
      var select = document.getElementById("select").options[document.getElementById("select").options.selectedIndex].value;
      alert(select);
}
</script>
<select name="select" id="select">
<option value="test1" selected="selected">Test1</option>
<option value="test2">Test2</option>
</select>
<input type="button" value="我要试试" onclick="check()"/>