text box read-only works only on IE5 but not Netsape

[FlatHead]

I have a text box which i want to make read only but unfortunatelly this works only on IE5 using:

Response.Write &quot;<td width=100 colspan = 4 align=left><input type=text name=Jobno size=13 value=&quot; &amp; oRecord(&quot;orderso&quot &amp; &quot; readonly></td>&quot;

Please help me to make the box read only on netscape as well.

Thanks harris