<form name=aa>
<input type=text name=input1 readonly>
<input type=button value="可改变" onclick=changeReadonly()>
</form>
<script>
function changeReadonly()
{
document.aa.input1.readonly=false;
}
</script>
<input type=text name=input1 readonly>
<input type=button value="可改变" onclick=changeReadonly()>
</form>
<script>
function changeReadonly()
{
document.aa.input1.readonly=false;
}
</script>
<%
if 条件成立 then
isReadOnly = "readonly"
esle
isReadOnly = ""
end if
%><input type=text name=input1 <%=isReadOnly%>>
<input type=text name=input1 readonly>
<input type=button value="可改变" onclick=changeReadonly()>
</form>
<script>
function changeReadonly()
{
document.aa.input1.readOnly=false;
}
</script>
function changeReadonly(){
if(document.all.input1.readOnly==false){
document.all.input1.readOnly=true;
}else{
document.all.input1.readOnly=false;
}
}
</script>
<input type=text name="input1" Readonly>
<input type=button value="可改变" onclick="changeReadonly();">
应该行的吧,我都尝试过的了