<script language="JavaScript">function chisRD(){
if (document.forms[0].isRD.checked){
document.forms[0].RDzw.disabled=false;
document.forms[0].RDzw.style.background="#FFFFFF";
}else{
document.forms[0].RDzw.disabled=true;
document.forms[0].RDzw.style.background="#DFDFDF";
}
}</script>
<form name="htmlform" method="post">
<input type="checkbox" id="isRD" name="isRD" value="Y" onclick="javascript:chisRD()">
<input name="RDzw" type="text" id="RDzw" style="background:#DFDFDF" disabled>
</form>
if (document.forms[0].isRD.checked){
document.forms[0].RDzw.disabled=false;
document.forms[0].RDzw.style.background="#FFFFFF";
}else{
document.forms[0].RDzw.disabled=true;
document.forms[0].RDzw.style.background="#DFDFDF";
}
}</script>
<form name="htmlform" method="post">
<input type="checkbox" id="isRD" name="isRD" value="Y" onclick="javascript:chisRD()">
<input name="RDzw" type="text" id="RDzw" style="background:#DFDFDF" disabled>
</form>
<input type="text" name="name1" size="20" readonly="true" >
<input type="button" value="ff" onclick="name1.readOnly=false">
readonly => readOnly 注意大小写 另不要用 name 这样的关键字给OBJ赋 name