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name="<%=uname%>" in jsp page n not able to validate it?

I am using name=”<%=uname%>” in jsp page in input type=”text” tag n not able to validate it?
I need a java script code for validation in this text field that user can’t leave this text box empty.
Please reply, its urgent,
Thanks n Regds,
Rajiv K

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@CharlesMay 26.2007 — It'll be something like:&lt;form action="some-script.pl" onsubmit="if (!/S/.test (this.form.&lt;%=uname%&gt;.value)) {alert (''); return false"&gt;
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@ray326May 26.2007 — Why are you naming your form fields on the fly like that?
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