I think you should understand the behaviour of "select" in html. If you want more, either you need to use Java Applet or ActiveX control or use div/layer to simulate the behaviour you want
调试欢乐多
se.selectedIndex=2;
}function edit(){
if(se.options[2]){
if(event.keyCode==8){
var str=se.options[2].innerText;
var len=str.length;
se.options[2].innerText=str.substring(0,len-1);
if(se.options[2].innerText=="")se.remove(2);
}
if(event.keyCode==13)return false;
if(event.keyCode==32){
se.options[2].innerText+=" ";}
}
}
</script>
<select id=se onkeypress=pp() onkeyup="edit()">
<option>测试程序
<option>Tullia
</select>
试试上面的程序吧,效果并不是很好,从其它地方拷来的,看上去象不能输入,其实可以