empty form check

I would like to get some help with checking if a form is empty.
If the form is empty something like "sorry try again" should be printed.
if it not empty then pass it on to searchprod.php3

echo "<FORM METHOD=POST ACTION="searchprod.php3 ">n";
echo "<INPUT TYPE=TEXT NAME=name VALUE="">n"; echo "
<input type=SUBMIT name=SUBMIT value=search>

regards
Hazze

hazze,

if (!($name)) {
header("Location: <A HREF="http://somewhere.com"0);" TARGET=_blank>http://somewhere.com"0);</A>
exit;
}

But if you use javascript it is faster because you do not have to refresh the page.

function valid(){
if(document.cfone.Cname.value=="") {alert("empty field");return false;}
}
would be used with
<form onsubmit="return cvalid()" name="cfone" action=.....etc>
<input type=text name=Cname></form>

or if you are using divs & netscape you can chuck in a bit of PHP snifing - cos this is the PHP section innit'.

if(<?php if(!ereg( "MSIE", $HTTP_USER_AGENT)){ echo "document.NAMEofDIV.";}?>document.cfone.Cname.value=="") {alert("Please enter your name");return false;}

(adds the path to the div for netscape as it has dodgy eyesight)

Simon

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Simon Wheeler
FirePages -DHTML/PHP/MySQL