<input type=radio name=大于4 onclick="aa.options[0].text='1'">
<input type=radio name=小于4 onclick="aa.options[0].text='5'">
<select name=aa>
<option>1</option>
</option>
<input type=radio name=小于4 onclick="aa.options[0].text='5'">
<select name=aa>
<option>1</option>
</option>
<input type=radio name=小于4 onclick=setOption(1)>
<select name=aa>
<option>1</option>
</option>
<script>
function setOption(val){
document.all.aa.option[0].text=val;
}
</script>
<script>
function changeselect(str)
{
if(str==">")
aa.options[0].text="5";
else
aa.options[0].text="0";
}
</script>
<input type=radio name=condition onclick="changeselect('>')">大于4
<input type=radio name=condition onclick="changeselect('<')">小于4
<select name=aa>
<option>1</option>
</option>
<input type=radio name=mm checked onclick=show()>小于4
<select name=aa>
<option>1</option>
</select>
<script>
function show(){
var arr=document.all("mm");
for(var i=0;i<arr.length;i++){
if(arr[i].checked==true) break;
}
if(i==0) document.all("aa").options[0].text="5";
else document.all("aa").options[0].text="1";
}</script>
<input type=radio name=mm checked onclick=show()>小于4
<select name=aa>
<option>1</option>
</select>
<script>
function show(){
var arr=document.all("mm");
for(var i=0;i<arr.length;i++){
if(arr[i].checked==true) break;
}
if(i==0) document.all("aa").options[0].text="5";
else document.all("aa").options[0].text="1";
}</script>
<input type=radio name=r onclick="SetSelectOpt(this.checked, 5);">
大于4
<input type=radio name=r onclick=SetSelectOpt(this.checked, 1);">
小于4
<select name=aa id=aa>
<option>1</option>
</select>
</form>
<script>
function SetSelectOpt(bSelect, NewValue)
{
if(bSelect == true)
{
aa.options[0].text = NewValue;
}
}
</script>
<script language="javascript">function aaaa(myob)
{ if (myob.value==1)
{
myform.aa.option[0].text='1';
myform.aa.option[1].text='2';
myform.aa.option[2].text='3';
}
else
{
myform.aa.option[0].text='4';
myform.aa.option[1].text='5';
myform.aa.option[2].text='6';
}}
</script>
<form name=myform>
<input type=radio name=myradio value=1 onclick="aaaa(this);">
<input type=radio name=myradio value=2 onclick="aaaa(this);">
<select name=aa></select>
</form>
{ if (myob.value==1)
{
myform.aa.options[0].text='1';
myform.aa.options[1].text='2';
myform.aa.options[2].text='3';
}
else
{
myform.aa.options[0].text='4';
myform.aa.options[1].text='5';
myform.aa.options[2].text='6';
}}
</script>
<form name=myform>
<input type=radio name=myradio value=1 onclick="aaaa(this);">
<input type=radio name=myradio value=2 onclick="aaaa(this);">
<select name=aa>
<option></option>
<option></option>
<option></option>
</select>
</form>
<option></option>
<option></option>
<option></option>
这一些东西!
<script language="javascript">
function aaaa(myob)
{
myform.aa.disabled=false;
if (myob.value==1)
{
myform.aa.options[0].text='1';
myform.aa.options[1].text='2';
myform.aa.options[2].text='3';
}
else
{
myform.aa.options[0].text='4';
myform.aa.options[1].text='5';
myform.aa.options[2].text='6';
}}
</script>
<form name=myform>
<input type=radio name=myradio value=1 onclick="aaaa(this);">
<input type=radio name=myradio value=2 onclick="aaaa(this);">
<select name=aa disabled=true>
<option></option>
<option></option>
<option></option>
</select>
</form>
<script language="javascript">
function aaaa(myob)
{
if (myob.value==1)
{myform.aa.options.length=0;
myform.aa.options[myform.aa.options.length++].text='1';
myform.aa.options[myform.aa.options.length++].text='2';
myform.aa.options[myform.aa.options.length++].text='3';
}
else
{myform.aa.options.length=0;
myform.aa.options[myform.aa.options.length++].text='4';
myform.aa.options[myform.aa.options.length++].text='5';
myform.aa.options[myform.aa.options.length++].text='6';
}
}
</script>
<form name=myform>
<input type=radio name=myradio value=1 onclick="aaaa(this);">
<input type=radio name=myradio value=2 onclick="aaaa(this);">
<select name=aa>
</select>
</form>
function qswh(str){
if(event.srcElement.checked)document.all.aa.outerHTML="<select name=aa><option>"+ str.split("").join("</option><option>")+"</option></select>"
}
</script>
<form name=myform>
<input type=radio name=myradio value=1 onclick="qswh('123')">小于4
<input type=radio name=myradio value=2 onclick="qswh('456')">大于4
<select name=aa>
</select>
</form>