Select's OnChange() event_form effects

<select name="sel" onchange="bao(this.options[this.options.selectedIndex].value)"> <option value="">Please select </option> <option value="1">Item 1 </option> <option value="2">Item 2 </option> <option value="3">Item 3 </option></select> <textarea id="txt">
[Ctrl A select all Note: If you need to introduce external Js, you need to refresh to execute

]<script> function bao(s) { txt.value+=s; //选择后,让第一项被选中,这样,就有Change啦. document.all.sel.options[0].selected=true; } </script>